I am into this fish hobby 8 yrs now, thus the "multiple tank habit..." I have a 45 gal tank of lg and sm goldfish, a 55 gal of 3 koi, a beautiful male green terror cichlid, a blood parrot cichlid, an ob peacock, a vestus cichlid, an oscar, a crown royal betta, an oxylotl, a 70 gal with all my...