Lincs Fish Health Envirex
Envirex-biological pond cleaner-degrades all types of solid waste matter whilst lowering ammonia, nitrite, nitrate and phosphate and other unwanted substances in pond water.The product can help to reduce the amount of filter cleaning, pond vacuuming and general maintenance.
Envirex was created to make ponds far more hygienic and less chance of disease developing in the fish.
Envirex is a natural product and completely harmless-cannot be overdosed. It cannot kill blanket weed or algae like a chemical but it can inhibit its growth but this requires regular use.