Hi there. I am so happy to be a part of this forum. I have had tanks for years (10 and 29g currently). 10g is a betta tank with 2 corys and some minnows. 29g has 2 Jack Dempsey, 6 corys, a banjo catfish and a LOT of minnows. I recently purchased the small Jack Dempsey cichlids to try to keep the...