I don't know where to put this, so if it needs to be moved, please do so... I have an explosion of algae in my tank. Its on the glass and rocks and filter. Is there anything to put in the water to kill it that won't hurt my fish? The tank is a 30 gallon with 5 fish- a blood parrot, a convict and two clown loaches and a pleco. Thanks a bunch for any advice!!!