Hey guys, Im looking for some suggestions on getting rid of some alge thats growning like crazy in my tank. It about an inch long in some places, hair like, and a darkish gree color, come off real easy too. Its a 90 gallon tank. I have an army of turbo snails, and two urchins working on it, but they dont seem to be able to keep up. So i reduced the time the light in the tank stays on down to 8 hours, and i just added 3 emerald crabs to try to help out... I have had the tank running for a 18 months, and seems the past few months it has slowly started being over run. The LFS guy suggested something to put in the water, but im not to big on that idea.. i been doing water changes weekly now with distilled water. Seems the urchins are helpping and so are the crabs.. but any ideas to get it gone forever?