Alum applications are most successful at pH levels between 4 and 6, which is slightly lower than what the pH of a typical nutrient-rich pond.
Phosphate reducers can help with algae problems by lowering phosphate levels in pond water.
High levels of phosphate in ponds are a major cause of green water and blanketweed problems, and can also cause nuisance levels of.
Ammonia and phosphate levels of pond water could be effectively reduced by water hyacinth (Eichhornia sp.), azolla (Azolla microphylla) and papaya (Carica.
Document describes simple management practices that can reduce the movement of phosphorus to water Collect runoff from manure stockpiles in holding ponds. Apply manure at recommended rates according to soil and manure nutrient.
high phosphate levels. i was on vacation about a month ago and a friend was watching my pond. it's been pretty hot here in virginia so i told.