Remove debris that’s built up over the winter. Sludge left to build up will decay and become a source for algae to grow. Start removing debris as soon as the ice melts or you see your fish become more active. Use your pond net or hand to clean up the larger debris. This will help.
The term biological filter refers to any material that helps nitrifying bacteria. The two types of bacteria are called Nitrosomonas and Nitrobacter, these are the bacteria responsible for the nitrifying cycle that converts fish waste to fertilizer. This keeps your fish healthy and happy. Biological filters are as simple as running a stream or waterfall.
Acclimate - the adaptation of an organism to environmental changes. When fish are moved from one body of water to another they must be acclimated to the new water slowly. Acidic - having a pH value less than 7 Activated carbon - carbon material that is used in the purification of water. Activated carbon is very porous with.