Tetra | Aquapet

Tetra is the only brand name that's become synonymous with ornamental fish keeping, thanks to Dr. Ulrich Baensch. He founded Tetra Werke (Company) in Melle, Germany 50 years ago, and pioneered the development of flake fish foods. Tetra now manufactures hundreds of products and publishes books for aquarium fish keeping, reptile and amphibian keeping, and water gardening.

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  1. Tetra FilterStart Bacteria - 500ml / 1L

    Tetra FilterStart Bacteria - 500ml / 1L

    Starting at: £11.99

    • Contains a highly active mix of bacteria
    • Reduces the pollutants (ammonium and nitrite) in the pond
    • Breaks down organic substances (such as fish waste and foliage)
    • 500ml bottle will treat 5,000 Litres of pond water
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  2. Tetra Pond Test Kits - 6 in 1 - 25 Strips Total

    Tetra Pond Test Kits - 6 in 1 - 25 Strips Total


    • A quick and easy way to test the quality of water in your pond
    • Simply dip into the pond for a few seconds and wait a minute for it to change colour
    • Compare with the chart to get your readings
    • Contains 25 test kits
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  3. Tetra Pond CrystalWater - Impoves Visibility

    Tetra Pond CrystalWater - Impoves Visibility

    Starting at: £7.30

    • Effectively removes dirt particles to improve visibility into the pond
    • Works in a matter of hours
    • Not suitable for sturgeons
    • Binds cloudiness caused by clay particles or soil, as well as cloudiness caused by organic particles, such as fish waste, uneaten food or dead plant material
    • Harmless to pond environments: the active ingredients in Tetra Pond CrystalWater coagulate floating particles that cloud the pond water. This makes it easier to filter out these particles or to remove them by hand
    • Makes pond care easy
    • Improves the water quality in the pond, enhancing the well-being of fish and plants
    • Incredibly easy to administer
    • Do not use to tackle algae. Use Tetra Pond AlgoFree to combat green water (floating algae). For best results, there should be a period of 4-5 days between treating the algae and using Tetra Pond CrystalWater
    • Do not use to tackle algae. Use Tetra Pond AlgoRem to combat green water (floating algae)
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  4. Tetra Pond AlgoFin

    Tetra Pond AlgoFin

    Starting at: £8.50

    • 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
    • The special active ingredient is effective over a period of around 2 – 3 weeks
    • Prevents further algae growth
    • Safe effect
    • To keep algae growth under control long-term
    • Harmless to aquatic plants, fish and microorganisms if used as instructed
    • Incredibly easy and precise dosage
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  5. Tetra Pond Sediment Minus - 250ml / 500ml

    Tetra Pond Sediment Minus - 250ml / 500ml

    Starting at: £8.50

    • Breaks Down organic components of bottom sludge (leaves, plant residues, food remains, fish waste, etc.) biologically
    • Contains effective microorganisms
    • Reduces sludge without disturbing the ecosystem by frequent cleaning measures
    • Prevents excessive sludge formation
    • Extends the cleaning intervals for garden ponds and filters
    • Easy application
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  6. Tetra Pond Peat & Straw 250ml

    Tetra Pond Peat & Straw 250ml


    - Natural anti-algae for preventive action. - Especially recommended in spring when the metabolic activity of the upper plants is still too low. - Natural plant product composed of peat and barley straw. - Provides humic acids that give the water of the basin a slightly brownish colour. - Helps reduce green water and floating algae. Learn More
  7. Tetra Pond AquaSafe

    Tetra Pond AquaSafe

    Starting at: £9.29

    • Using a three-step process, a special combination of active ingredients offers instant and lasting pond protection by:
    • Effectively and permanently neutralising poisonous heavy metals such as copper, zinc and lead
    • Neutralising aggressive chlorine
    • Using organic colloidal ingredients that effectively protect fish gills and mucous membranes and thus prevent disease
    • Contains vitamin B1 to combat stress, for instance when transporting, introducing or transferring fish
    • With iodine and minerals to increase fish vitality and promote breeding
    • Creates ideal conditions for the colonisation of microorganisms, which break down toxic substances such as ammonia and nitrite
    • Immediate and long-lasting effect
    • Incredibly easy and precise dosage
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  8. Tetra Pond AlgoRem

    Tetra Pond AlgoRem

    Starting at: £7.30

    Out of stock

    • Not suitable for sturgeons
    • Floating algae are bound into biologically degradable flakes that can easily be removed mechanically
    • Works in a matter of hours
    • Algae nutrients (phosphate) are effectively removed
    • Clears pond water without affecting the natural balance of the pond biosphere
    • Contains no toxic substances and is algicide- and herbicide-free
    • Incredibly easy and precise dosage
    • Important: Make sure the carbonate hardness of the pond water is above 4°dH before each application to avoid unstable water conditions and darming the fish
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  9. Tetra Pond MediFin

    Tetra Pond MediFin

    Starting at: £8.50

    • Highly active combination of agents that combat the most common pond fish diseases
    • Very broad spectrum of activity
    • Helps combat skin parasites and bacterial skin infections effectively and quickly
    • For wounds and all types of external injuries
    • Also for prevention and disinfection purposes
    • Harmless to plants, fish and other higher forms of water organisms when used correctly
    • The liquid form ensures fast and uniform distribution of the agents
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  10. Tetra My First Aquarium - 18L Starter Kit

    Tetra My First Aquarium - 18L Starter Kit


    Out of stock

    • 18L Tank
    • A small amount of Tetra Aquasafe, to make tap water safe by neutralising harmful substances
    • TetraMin Fish Food, which contains all necessary vitamins and minerals for your fish's health, colour and vitality
    • Filter, which will help provide crystal clear water
    • Gravel, to decorate your aquarium
    • Decor, two poster themes and a sticker set
    • Plants, provides a natural look to your aquarium
    • Brochure, a helpful beginners guide to fishkeeping
    Learn More

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