i have a 12gal and a 125gal.. the 12 gal is my coral tank with a seahorse and 2 pipefish....i also have bubble coral ...toadstool. a plate coral adn an open brain....now i have brown algae on th ebottom and on the LR ....how can i eliminate the algae for good...should i get the Fission Skimmer for the aquapod 12 gal...?? let me know ...i don't want to lose the corals to some algae..!!!