Why does the sponge colony water turn turbulent?

The water in a sponge colony can turn turbulent due to the increased activity of the sponges as they filter feed, drawing in water through their pores and expelling it through their oscula. This process creates currents that can disturb the surrounding water. Additionally, the movement of other organisms or changes in environmental conditions like currents or waves can contribute to the turbulence. Overall, the collective filtering action of the sponges plays a significant role in altering the water's flow.