Just sold off my Cutteri pair and 23 of their 26 fry yesterday (couldn't catch 3 so they'll sadly wind up as feeders for the bullhead about to go in that tank). I loved the pair but they were just way to aggressive to my catfish at feeding time so I got rid of them. They were in my 75 gallon but that's now an all catfish plus 6 giant danios tank. I got a free 37 gallon (30"L x 12"W x 24"H) off my friend a while back and don't really have any plans for it. One thing I'm considering doing is a pair of cichlids but I don't know what would do well in that size tank. I'm looking for something with a lot of personality but in the size range that it'll fit in that tank for life. Since I wouldn't be keeping them with any tankmates that gives me the opportunity to do a type of fish I've always wanted: super aggressive! I love the behavior of aggressive fish but I just didn't like having them in with my peaceful catfish. I was thinking something like Red Ceibals or another big bad member of Archocentrus or similar genus. I'd prefer to use this tank since I got it for free but if it's just a downright terrible size for what I'm looking for I could sell it for a 40 or 50 breeder need be. So what would you guys suggest?
