ok i have been battleing hair and cyno for over a year now.....i have been remoiving it my hand and doing weekly water changes with RODI water........my nitrate/nitrtite/ ammonia phosphate are undetechtable......this stuff grows so fast it will cover my tank in a weeks time and is now starting to impact my corals negatively.....i have scrubbed all my rocks in my seahorse tank due to the same problem but there were no fish present in the tank just a few snails pods and worms.....it hasnt come back yet and i have been treating the tank with hyposalinity.....i want to do this with my reef tank and am wondering what the negatives are on taking out all of the rocks and scrubbing all the hair and cyno off them and then reaquascapinfg the whole tank......thanks