I really don't understand your philosophy on fishkeeping. You have some pretty lame excuses not to rehome your Arowana to your LFSs. Now you're talking about putting a Black Belt cichlid and more large cats in your 29g. That's way to small for a Blackbelt and multiple cats. Every thread you start has fish species that grow way to big for your tank. I'm lost on what tanks and fish you even have right now. I guess I just don't get it. If I were you I would get rid of ALL of your fish and really rethink things. I wouldn't get any other fish until you have a larger tank or set up a small community tank in your 29g (no arowanas! lol). Not trying to be a d*** but damn brother. Okay, done ranting. Hope you get your 75g ASAP and NOT overstock it.