ok so have been doing water changes every couple days to bring down kh was at 20 now is 14 15 ph has slowly fallen to 7.8. salinity slowly from 1.023 to 1.025 at first it wasnt a problem for the fish but then the clowns got spots. the damsls got redish fins. the one spot rabbit is ok but he...

I have this white stuff growing on a few of my rocks and appears to be spreading slowly. Is this bad/ good(doubt it can be good) but please help me out here! thanks all:D

I have noticed recently some white fuzz on a portion of one of my live rocks. It almost looks like cotton fuzz attached to the rock and it sways softly with the current. Its not pressed against the rock but it looks kinda loose and extends off the rock a bit. Could this be some sort of fungus...