Hello there fellow reefer, I'm having kind of a problem I recently did a water change to the tank its a fusion 15 g from IM aio system and also replaced the filter sock for a floss chamber ,so did the water change and next morning I noticed some small hairs of like white alge ,tested the water and everything was fine amonia 0 nitrites and nitrates 0 ph at 7.8 and salinity 35 ppm so clean the tank but it just keeps coming..