My tank was cycled and has been running since May. Now I am starting to see some algae in the tank. I have a tool to clean the glass. Do I just scrub it and then do a PWC? Also, my filter is getting kinda gunky and not flowing as I might like it to. I know I am not to change my filter monthly as the Penguin manufacturer recommends. I have the biowheel. Is the good bacteria in the filter or the bio wheel or both? I am also trying to cycle a second tank-could I rinse the dirty one in the new tank to help BB growth? Then return it to the older tank? Think I'll get a snail or two to help with algae. Can someone recommend snails that don't multiply like guppies? I do not have any algae eaters in the tank-except the gourami's like to eat what they can. I have a 36 gal bowfront. Know I have lots of questions- sorry.