[tang daddy]

algae is caused by a number of things, different algae by different causes bba aka black beard algae is hard to get rid of boil the stuff it's on but it may come back I've heard of flourish excel taking care of it also increasing flow in the tank and feeding sparingly. Someone had suggested turning off flow in the tank and doing spot treatments with hydrogen peroxide but don't quote me as I havent tried it. Hair algae can be taken care of by a few amano shrimp slime algae is a type of bacteria like cyano in saltwater and can be taken care of with meds. A quick search on google may help you get some answers, there is a planted section on BC aquaria check it for some info cheers Chris.