High-quality nutrient concentrate for all reptiles.

• contains all important vitamins, proteins, trace elements and vegetable nutrients
• prevents deficiency symptoms
• promotes resistance to disease and vitality (...)

Use of Tetra® BF 400/600 plus replacement Filter Foam in Tetra® Internal Filters IN 400 plus and IN 600 plus ensures that the aquarium water is filtered effectively.

• settlement of biologically active bacterial cultures in the filter foam: harmful nitrite is converted into nitrate
• the structure of the foam ensures good physical filtration: small, visible particles are removed from the aquarium water

High-quality liquid vitamin supplement for all reptiles.

• increases resistance to disease
• with practical pipette for direct administration onto the food

High-quality natural food for turtles with whole gammarus, ensuring a healthy and species-typical diet.

• rich in natural minerals and fibre
• kept in its natural form, this food is packed hygienically and germ-free
• can be excellently combined with Tetra ReptoMin Turtle Food

The Tetra AquaArt Crayfish Aquarium for shrimps and crayfish.

• high-quality glass aquarium (35 x 35 x 25 cm), 30 litre content
• stable lid with long-life 11 watt fluorescent tube (...)

Effectively eradicates green water (floating algae).

• in low temperatures, most algae grow faster than plants. The use of AlgoFree prevents early algae growth in the spring
• not suitable for sturgeons

how it works: (...)

Mild biological treatment for combating algae.

• for use at the onset of algae problems
• broad-spectrum action to combat all frequently occurring types of algae
• contains humic substances as a natural anti-algae agent
• when used correctly, it is harmless to fish, plants and micro-organisms

The Tetra AquaArt Aquarium - with a modern design and innovative equipment, easy to maintain.

• high-quality glass aquarium (57 x 35 x 30 cm), 60 litre content
• 5 mm thick, distortionless float glass with cut edges (...)

Solves even persistent algae problems.

• contains intensive agents to persistent prolific algae growth
• "emergency stop" for persistent algae growth
• the water is not discoloured

The Tetra® Activated Carbon Foam CF 800/1000 plus reliably removes harmful substances, medicinal products and other unwanted chemicals from the aquarium water.

• reduces unpleasant odours
• ensures clear water (...)

The Tetra® Activated Carbon Filter CF 400/600 plus reliably removes harmful substances, medicinal products and other unwanted chemicals from the aquarium water.

• reduces unpleasant odours
• ensures clear water (...)

An ecologically sound, long-term method of supplying ponds with vital oxygen in connection with an Air Pump.

• extra large Air Stone
• for the aeration of ponds and aquariums
• low pressure resistance for maximum pump performance (...)

For the controlled reduction of the pH-value and the carbonate hardness level.

• establishes tropical water conditions with a pH-value below 7.5 and a carbonate hardness of 4° dH
• precise adjustment of the carbonate hardness, regulating the pH-value on a long-term basis (...)

For the prevention and long-term elimination of algae.

• depot principle: the concentration of the active anti-algae agents increases slowly in the aquarium water - leading to a mild, long-term effect
• the algae are considerably reduced within four to seven days. New formation of algae is prevented
• with dispenser for long-term application

Liquid iron intensive fertiliser - ensures lush and rich green plant growth.

• contains complex bound iron and other valuable trace elements (e.g. manganese), as well as potassium, which is an important main nutrient for plants
• the nutrients are absorbed through the leaves (...)

For the controlled adjustment of the pH-value and the carbonate hardness level.

• increases the carbonate hardness level and pH-value, e.g. in Cichlid tanks and for other species that require a pH-value between 7.5 and 8.5 and a water hardness of 10 - 15° dH
• allows the carbonate hardness level and pH-value to be precisely adjusted to planned or recommended levels
• compensates for carbonate hardness losses in marine aquariums and carbonate hardness losses that frequently occur in densely populated tanks (...)

Creates a biologically active environment to allow the fast introduction of fish into a newly set up aquarium.

• Tetra SafeStart contains specially bred, live, nitrifying bacteria that substantially reduce harmful ammonia and nitrite in tanks
• reduces the ammonia content by up to fourteenfold and the nitrite content by up to tenfold (...)

Water conditioner that immediately transforms aggressive tap water into near-natural aquarium water suitable for fish -
with the BioExtract formula for healthy, clear water.

• the new formula promotes healthy water and healthy fish through a unique mix of natural biopolymers and trace elements (...)

Long-term care for biologically healthy water - for up to six months.

Reduces the number of water changes required.

• thanks to the reliable stabilisation of the pH-value and the carbonate hardness value, chemical changes in the water quality are minimised, preventing sudden dangerous drops in acidity that can endanger the life of fish
• reduces phosphate and now also nitrate in a purely biological manner, preventing excessive algae growth (...)

Measures overall hardness reliably and precisely

• for all freshwater aquariums
• excellent long-term stability
• for a large number of analyses (...)

Measures the pH value reliably and precisely

• for a large number of analyses
• excellent long-term stability (...)

High-quality staple food, especially developed for Betta splendens (Fighting Fish) and other Labyrinth Fish.

• contains a species-appropriate proportion of protein from added shrimps and krill
• animal proteins promote growth and the accentuation of imposing fins
• contains natural colour enhancers

Natural snack food for water turtles.

• delicious taste for high acceptance by water turtles
• patented BioActive* formula maintains a healthy immune system
• convenient single portions

Energy food for turtles.

• contains over 55% krill and shrimps and is therefore rich in unsaturated fatty acids (omega 3)
• natural fats (high-quality energy providers) promote the metabolism and increase resistance to disease

Staple food for the species-appropriate feeding of all tortoises.

• contains all essential fibres and is highly enjoyed by the reptiles
• for natural growth and long-term health (...)

Staple food mixture for all types of medium-sized Cichlids - with the patented BioActive® formula.

• comprises two different granules. The food mixture is ideal for all Cichlid types.
• contains natural carotinoides for more intense colours

Ensures immediate bioactivity in the filter and aquarium.

• causes enzymatic degradation of organic contamination
• improves water quality and promotes clear water
• assists and accelerates the degradation of ammonia and nitrite by activating the nitrifying bacteria (...)

For natural, safe pond water for fish.

special combination of active ingredients makes ponds immediately safe and helps keep them that way by:

1. Effectively and permanently neutralising poisonous heavy metals such as copper, zinc and lead
2. (...)

Balanced mineral food in powder form for all reptiles.

• contains essential minerals such as calcium, phophorous and vitamin D3
• promotes natural shell formation and bone growth
• prevents deficiency symptoms

Solid tablets for targeted long-term control of algae in freshwater aquariums.

• destroys brush and thread algae
• prevents the growth of algae
• contains highly effective algicide with broad-spectrum action (...)

Complete food for all Guppies.

• Miniature flakes that are specifically designed for the small mouths of Guppies and other livebearers
• High content of vegetable ingredients and added minerals for improved palatability and growth
• With colour enhancers for bright colours (...)

Balanced and wholesome staple food for all carnivorous Cichlids - with a high shrimp content and the patented BioActive® formula.

• high content of freeze-dried shrimps (55%)
• high-quality fatty acids as energy providers increase resistance to disease (...)

Fertiliser tablets for beautiful aquatic plants.

Ensures aquatic plants are specifically supplied with all essential nutrient combinations.

• protects and strengthens new plants in the aquarium (...)

Staple food for all turtles. For a varied and species-appropriate nutrition.

• Mini Krill to promote growth
• Mini Sticks to strengthen shell and bones
• Baby Shrimps for ideal food digestion (...)

Biologically balanced staple food, specially formulated for the daily feeding of valuable Koi.

• ensures good condition and naturally vibrant colours
• Pellets become soft quickly, making them easier to eat for the Koi (...)

Water test laboratory in an attractive, synthetic case.

• for the precise determination of general hardness, carbonate hardness, pH-value (freshwater), ammonia, nitrite and nitrate values, PO4, Fe, as well as oxygen content in tap and aquarium water
• reliable and precise test results, for a large number of analyses
• the case also contains a dosing syringe, cuvettes, colour cards and information on aquarium water (...)

High-quality staple food specially formulated for the specific dietary requirements of sterlets and other sturgeon in garden ponds.

• scientifically tested recipe with an optimum protein/fat ratio for healthy growth
• contains rapidly sinking sticks, specifically formulated for the feeding habits of bottom-dwelling sterlets and sturgeon (...)

Vitalising, specially balanced granulated food - promotes resistance to disease.

• wholesome, easily digestible and balanced granulated food, especially adapted to the needs of young Discus and rearing couples
• developed for the requirements of Discus in extreme situations - after diseases, during the breeding period and before, during and after shows (...)

Staple food for herbivorous fish

• solid wafers with valuable spirulina algae especially for herbivorous fish (such as Ancistrus, Plecostomus, L Catfish)
• the wafers soften gradually, meaning fish have to process them, and the aquarium water does not become cloudy
• conform to the fish s natural eating habits

High-performance heater with different power settings.

• temperature-setting button to preselect the desired water temperature within the range of 19°C to 31°C at 0.5°C intervals
• water-tight cap, i.e. fully immersible
• control light for the heating phase (...)

Floating food sticks to enhance the natural colouring of all pond fish.

• with high-quality carotenoids that naturally intensify red, yellow and orange colouring
• contains all essential nutrients, fibre and vitamins and trace elements
• easily digestible, thanks to the good biological availability of the nutrients (...)

Biologically balanced staple food for the good condition of valuable Koi at water temperatures of below 10°C.

• optimally adjusted to the reduced metabolic activity of Koi in colder water temperatures, due to the high proportion of nutritious wheatgerm
• important in preparing for hibernation because more strengthening nutrient reserves can be built up (...)

Selected food mixture comprising the best flakes, sticks, tablets and gammarus to meet the feeding requirements of all pond fish.

• with high-quality flakes that are particulary suited to the nutritional requirements of young and smaller fish
• contains floating food sticks for all fish that prefer to eat their food at the surface of the pond (...)

Creates clear water by the physical, biological and chemical filtration of all ponds up to 12,000 litres.

In addition, the water is enriched with oxygen by the integrated Venturi system.

• physical filtration removes contaminants from the pond water (...)

Provides an optimal start into the pond season.

• reduces key algae nutrient phosphate that accumulates over the winter period
• provides iron to promote plant growth (...)

Rapidly clears dirty pond water

• not suitable for sturgeons
• Binds cloudiness caused by soil, clay particles, sand or unwashed gravel, as well as organic particles
• Harmless to pond environment: binds suspended particles so they can easily be filtered out or manually removed (...)

Adds essential substances to pond water to create a natural water regime for fish, plants and microorganisms in garden ponds.

• with B vitamins and active iodine
• increases wellbeing of fish and makes them less susceptible to disease
• promotes vitality and brings out the colour of your pond fish (...)

Quickly increases oxygen level.

• helps during oxygen deficiency
• enhances natural biological processes and improves water quality
• helps create a healthy pond environment (...)

The innovative EasyCrystal® FilterPack 250/300 is suitable for both EasyCrystal® Filter 250 and EasyCrystal® FilterBox 300.

• With its intensive physical and biological filtration, the filter cartridge ensures crystal clear, healthy water.
• The double-layered Filter Floss Pads with a large surface area reliably remove even the tiniest particles. White side = coarse pre-filter, green side = fine filter
• (...)

The innovative EasyCrystal® Filter Pack C 250/300 is suitable for both EasyCrystal® Filter 250 and EasyCrystal FilterBox 300.

With its intensive physical biological and chemical filtration, the filter cartridge ensures crystal clear, healthy water. (...)

Works immediately against blanket weed.

• eliminates dense blanket weed growth that tends to grow around the edge of the pond or floats at large mats on the surface of the water
• works on contact and acts immediately
• cleans waterfalls and watercourses (...)

Greenstuff tablets containing a high proportion of spirulina algae.

• ideally suited to the specific dietary requirements of herbivorous Catfish and Sucking Loaches
• soften quickly, which is why fish love them
• stabilised vitamin C increases resistance to disease, promotes healthy growth and prevents nutrition-related deficiency symptoms (...)

Premium food for all ornamental fish - promotes health and provides extra energy.

• The crisp mixture is now supplemented by Energy Crisps containing concentrated nutrients
• High-quality omega-3 fatty acids provide additional energy (...)

Staple food for bottom-feeding ornamental fish, containing all essential nutrients.

• the optimum, specific and varied food for ornamental fish that live near the bottom of the aquarium, e.g. Catfish, Loaches and bottom-feeding Barbs
• the tablets sink to the bottom, enabling the feeding place to be selected (...)

Keeps pond water balanced and healthy

• Maintains correct water conditions: stabilises pH and carbonate hardness (KH)
• Creates healthy living conditions for fish, plants, and micro-organisms: replenishes important trace elements, vitamins, and organic substances (...)

Natural algae prevention. Quick, safe and eco-friendly.

• natural botanical product made of peat and barley straw extracts for natural algae prevention
• with highly effective humic acids which give pond water a slight brownish colour
• acts as a light filter and so hinders the process of photosynthesis (...)

Boosts the performance of UV clarifiers.

• creates crystal clear water: eliminates green water (suspended algae) and colours
• creates healthy water: removes germs harmful to fish (...)

Biologically balanced staple food for more growth and vibrant colours in valuable Koi.

• specially for daily feeding at water temperatures of above 10°C and to build up reserves before and after hibernation
• the nutritious proteins are easily digestible and are optimally converted into body mass (...)

Flake food for all herbivorous ornamental fish - with essential fibre.

• ideal food for live-bearing and other herbivorous ornamental fish, containing all vital nutrients, vitamins and trace elements
• promotes vitality, growth and robustness (...)

Flake food with natural colour enhancers for more intense colours

• special raw materials (hormone-free) ensure the full development of the fish s natural colouring
• the colour-enhancing effect is already noticeable within two weeks of feeding (...)

Internal Aquarium Filter for crystal clear, healthy water. Easy maintenance.

• with its intensive physical, biological and chemical filtration, the filter ensures crystal clear, healthy water:
• physical filtration: double-layered Filter Floss Pads reliably remove even the tiniest particles. White side = coarse pre-filter, green side = fine filter
• (...)

Staple food for young fish up to 1 cm in length - rich in proteins.

New formula for clean and clear water "guaranteed**".

• extremely finely sieved, enriched with additional nutrients for ornamental fish fry (...)

For natural, safe pond water for fish.

special combination of active ingredients makes ponds immediately safe and helps keep them that way by: (...)

Der DENNERLE COLOR-Quarzkies verleiht auch Ihrem Aquarium eine ausgezeichnete Optik, weiterhin besitzt der Kies eine perfekte Bio-Funktion.

Die Vorteile des Dennerle-Kies:

• CO2-beständig
• Körnung 1-2mm
• Kanten gerundet - Schutz für Bodenfische (...)

Effective and safe treatment for stubborn blanketweed and other pond algae.

• intensive treatment for most frequently occurring algae types, such as blanketweed, floating algae and smear algae
• how it works: Targeted attack on the organism and metabolism of algae, impeding their ability to photosynthesise (...)

Delicacy for all turtles.

• whole shrimps for a delicious, varied diet
• healthy, species-appropriate food for turtles (...)

Staple food in flake form, particularly suitable for all small and young pond fish.

• flake mixture comprising four types of flake for a varied, balanced and healthy diet
• the red flakes, with their high protein content, promote growth and vitality (...)

Use of Tetra® BF 400/600 plus replacement Filter Foam in Tetra® Internal Filters IN 400 plus and IN 600 plus ensures that the aquarium water is filtered effectively.

• settlement of biologically active bacterial cultures in the filter foam: harmful nitrite is converted into nitrate
• the structure of the foam ensures good physical filtration: small, visible particles are removed from the aquarium water (...)

Use of Tetra® BF 800/1000 replacement Filter Foam in Tetra® Internal Filters IN 800 plus and IN 1000 plus ensures that the aquarium water is filtered effectively.

• settlement of biologically active bacterial cultures in the filter foam: harmful nitrite is converted into nitrate (...)

Granulated staple food.

• optimally adapted to the special dietary requirements of Discus with regard to colour, shape and formula
• contains all essential nutrients, vitamins and trace elements (...)

For healthy plant growth.

Tetra Pond® PlantaMin® makes your aquatic plants grow, creating a beautiful pond with vividly coloured plants.

• contains iron and other valuable trace elements that ensure lush and healthy plant growth
• is easily absorbed via the leaves and promotes beautiful lush green plants (...)

Premium food for all pond fish with more nutrients and energy to promote better growth and greater resistance to disease

• manufactured by the unique, gentle Tetra process, which protects the vitamins due to low processing temperatures
• more energy for the fish due to an optimised protein-fat ratio (...)

Measures the pH value reliably and precisely

• for all freshwater aquariums
• excellent long-term stability
• for a large number of analyses (...)

Internal Aquarium Filter with heating compartment for crystal clear, healthy water and easy maintenance.

The EasyCrystal FilterBox is a compact, space-saving complete set for optimum filtration of the aquarium water. (...)

Flexible silicone Air Hose for Air Stones.

• 2.5 metres long, diameters 4/6 mm (inner/outer)
• suitable for Tetra APS 50 - 400 and most other air pumps

The Tetra® Activated Carbon Foam CF 800/1000 plus reliably removes harmful substances, medicinal products and other unwanted chemicals from the aquarium water.

• reduces unpleasant odours
• ensures clear water (...)

The Tetra® Activated Carbon Filter CF 400/600 plus reliably removes harmful substances, medicinal products and other unwanted chemicals from the aquarium water.

• reduces unpleasant odours
• ensures clear water (...)

Fine-pored Air Stones for optimum oxygen supply in all aquariums.

• fine-beaded and uniform discharge of air
• full use of pump performance due to low pressure resistance (...)

Fine-pored Air Stones for optimum oxygen supply in all aquariums.

• fine-beaded and uniform discharge of air
• full use of pump performance due to low pressure resistance (...)

Fine-pored Air Stones for optimum oxygen supply in all aquariums.

• fine-beaded and uniform discharge of air
• full use of pump performance due to low pressure resistance (...)

Fine-pored Air Stones for optimum oxygen supply in all aquariums.

• fine-beaded and uniform discharge of air
• full use of pump performance due to low pressure resistance (...)

Fine-pored Air Stones for optimum oxygen supply in all aquariums.

• fine-beaded and uniform discharge of air
• full use of pump performance due to low pressure resistance (...)

The Tetratec® AL Fluorescent Tube was developed for aquariums up to 60 cm in size and, in particular, for Tetra AquaArt 60L aquariums.

It was designed to produce the ideal growing light for healthy aquatic plants. It also intensifies the colours of the fish by enhancing the orange, red and blue pigments.

• (...)

Delicious snack containing 100% freeze-dried krill.

• carefully sun-dried or freeze-dried, each TetraDelica snack unfolds the full nutritional content of the natural food
• ensures a varied and species-typical diet (...)

Delicious snack containing 100% freeze-dried shrimps.

• carefully sun-dried or freeze-dried, each TetraDelica snack unfolds the full nutritional content of the natural food
• ensures a varied and species-typical diet
• ideal supplement to popular Tetra foods (...)

Delicious snack containing - 100% freeze-dried red bloodworms.

• carefully sun-dried or freeze-dried, each TetraDelica snack unfolds the full nutritional content of the natural food
• ensures a varied and species-typical diet (...)

Delicious snack containing 100% sun-dried daphnia

• carefully sun-dried or freeze-dried, each TetraDelica snack unfolds the full nutritional content of the natural food
• ensures a varied and species-typical diet
• ideal supplement to popular Tetra foods (...)

Stapel food for all ornamental fish - high nutritional value due to Tetra s gentle production process.

• Ideal crisp mixture for all ornamental fish
• Manufactured using the unique low-heat production process: (...)

Filter foam for EasyCrystal Filter 250 and EasyCrystal FilterBox 300 with intensive biological filtration for crystal clear, healthy water.

• biological filtration: Filter Foam and Bio Filter Balls with an extra large surface area for the settlement of beneficial bacteria
• Grid frame for the easy replacement of the Bio Foam

Universally active medicinal product for all pond fish.

• highly active combination of agents that combat the most common pond fish diseases
• very broad spectrum of activity (...)

Staple food in stick form for the healthy, tasty, species-appropriate feeding of water turtles.

• contains all essential ingredients
• optimum calcium content for healthy shell formation and strong bone growth
• contains a high proportion of easily digestible proteins

Air-operated internal filter with foam.

• ideal filtration using physical and bioactive methods
• high-quality foam, i.e. it does not disintegrate in the water and is non-toxic (...)

High-quality staple food in floating stick form, especially developed for the healthy, balanced diet of Koi.

• contain all essential nutrients, vitamins and trace elements
• natural colour enhancers (high-quality carotenoids) bring out the red, yellow and orange colour pigments to the full (...)

Water test set for the reliable and precise determination of four decisive water values.

• for the precise determination of the four most important water values: general hardness, carbonate hardness, pH-value (freshwater) and nitrite content
• besides the test reagents, the set contains four cuvettes, colour charts and a dosing syringe (..)

Natural algae prevention. Quick, safe and eco-friendly.

• natural botanical product made of peat and barley straw extracts for natural algae prevention
• with highly effective humic acids which give pond water a slight brownish colour (...)