Im starting to develop some hair algae in my mantis tank and was wondering if anyone else has experienced that problem. did you add other livestock like nudibranches to tackel the job or just lots of water changes? I have a 30 gallon with about 10 pounds of liverock and a bag and a half of live sand. I have a medium sized peacock and a small niger trigger in the tank. The only other things are 3 big snails and a feather duster. Yolanda is very happy and eats well.... I just like things to look good.