Anyways, after rereading it, I saw that I told you earlier that I'd update you on the aggression of my aba aba and so far it's still pretty peaceful. It's still around 14" maybe a little bigger and hasn't picked on anyone in the tank. It's actually being picked on by the 12" armatus and hasn't done anything to the bichirs. But after that's said, I wouldn't recommend it for your biotope. Even though it hasn't attacked any of the fish, it aggressively attacks the hose whenever I do wc's making me think that if I ever add any new fish to the tank, they would be goners. Also with all the other fish you plan on keeping, I just don't see it working out since these guys are extremely territorial but any bottom dweller I feel will be ignored, this is from my experience and from what I've read and heard from others.
Some new info now. As for mormyrus sp. I acquired a M. longirostris not long ago and it would definitely be a fun and enjoyable fish to have in there but it can go 1 way or another. It is an extremely playful fish! The first 10 min after adding it to my tank, it swam around and explored. It then started playing with some Anubia leaves by flipping them around with its "trunk" and swimming in and out of the leaves. It was definitely extremely fun to watch. Like the aba, though, they are extremely territorial. After it was done playing, it saw the gatf and started chasing it. It then saw the bichir and started pushing it around like the dolphins do with balls at seaworld. I thought this was just temporary until I came home later in the night and it was STILL doing it with the bichir so I immediately had to separate it. So if there's enough room for it to claim a territory, I don't think you'll have a problem but if some of the bichirs decide they like the same spots or if the other fish are constantly swimming there, I can see problems happening.
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