Well I am new to the forum. but I have had an aquarium for a long long time. But now I have come acrossed a problrm that I have never had before. I have this really weird scummy algee growing in and on everything in the tank. Not sure what it is or wha has caused it or how to get rid of it. It is a 50 gal no undergravel filter but I do have an AquaClear 500 (now known as the 110). Any help or thought will be great. Thanks Tim