I'm racking my brain on filtration for my 110g stock tank. I have 2 pumps and would like to use 1 for the stock tank but I can't find a filter that isn't stupid overkill for it (oase biosmart 5,000) or crazy expensive for outdoor use like an fx6. I really don't want to use sponge filters because it's outdoors and idk of an outdoor use air pump. Plus I don't want the surface of the water too disturbed like with sponge filter bubbles or a waterfall type filter (tetra pond waterfall filter) so I can actually see and enjoy the fish.. it's for peacock/mbuna cichlids