Almost everyone’s pond turns green in the spring. This is because the bacteria in water have gone dormant. Since
the pond has accumulated nutrients all winter, the algae is thriving and the bacteria have some catching up to do. It is important
not to change the water, but rather let nature take it’s course. Adding beneficial bacteria products such as Ultra Clear? can
help to speed the process up.
Mechanical filtration is the filtration of solid particles and sludge with the aid of a sponge filter. Regular cleaning of
the sponge can prevent the breakdown and release of nutrients back into water. A sponge filter captures some algae, but most
of it passes through the pores. Adding a coagulator such as Tetra Pond Aqua Rem clarifier will cause the algae cells to stick
together into clumps so that they may be caught with a sponge filter.