ok, I have 2x 125s and the 180, I am trading a 55 and 75 with stands for another 125. so Id like to stock this with my Jack Dempsey and African knife I want to add the following......... 2x eclipse cats, a salvini and a acara . will this be ok or is it overstocked. Also will the cats eat the knife, since it stays the littlest at 8 in.