I do have cyanobacter. I'm starting to think the majority of this stuff on the back glass is cyanobacter as well. When i rub my fingers along the back glass I feel some hard spots that are to small to see and some that are white but still very small. I also have a lot of hair algea growing on the rocks. I tried to kill the cyano bacter with leaving the lights off for a week and doing water changes with RO/Di water from LFS. I guess I need to add a good clean up crew. to help get rid of the detritus before it causes this problem huh. If I add lots of snails at one time will it make a signifgant change to my bio load? Will a cleanup crew eat hair algea? I guess I need some tank cleaning tips. I'm also concerned about adding snails because i have a chocolatechip star. Any help would be great.