Hi guys, So a few moths ago my LFS got in two beautiful Parrot cichlids, both about 4 in long. They had already paired together, and I was really hoping the store would sell them as a pair, and even voiced my opinion. It happens that they only sold one. I've been keeping an eye on the remaining one over the last few weeks and he is slowly going down hill, very pale and lethargic. I know these are shy fish to begin with, but right after he was separated he seemed a heck of a lot better and active than he did now. I have a 20g long sitting around and everything is ready to add and build, (don't scold me yet, read on) and if I were to get this fish I would get a 50-60g tank as soon as I can (either build or buy). My point and question is..... How long would a four inch parrot last in a 20g long with 40% water changes every 2-3 days? (this is the frequency I do on my other tanks) I'm waiting to hear back from a school I applied to and the only way I would ever go forward with getting the fish is if I didn't get accepted or my brother (who is older and financially stable and fish tank able) agreed to adopt it after I got it situated in a 50-60 g tank. And of course after asking the fish gurus on this forum. Any input would be appreciated! Thanks guys!