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.
- 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
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)
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