Pond Boss Forums INTRO Questions & Observations Where'd the algae bloom go?

Techman and AhomeIN both experienced rapid decreases or crashes of the phytoplankton community. Both phytoplankton decreases were due to lower nutrients in the water column. Techman's reduction of nutrients was due to rooted vegetation absorbing nutrients whereas AhomeIN's reduction of nutrients was probably due to the phytoplankton bloom itself absorbing available nutrients in the water column and starving itself out. Phytoplankton blooms can crash due to decreases in only one limiting nutrient. AhomeIN's brown water was due to one of the numerous algae species that when very abundant can cause a brownish tint to the water. Note other things besides phytoplankton can also impart a brown tint in water.