The damsel mysteriously died. i checked nitrates and it tested 0. i cannot thinki of anything else right now that could have killed him. the lighting got backorderd a week ago and i didnt get the e-mail about it, but they will be here on moday. i really regret putting that hair algea in there. even tho i removed it from the tank its comming back. im thinkin i should change most if not all of the water and take all the rocks and scrub them with a tooth brush to get rid of the hair algea. do you think this will help??