Yep, 100% aethiopicus
Yeah marbled lungfish are generally the African lungfish that you’ll see in communities. I’ve heard people say their success comes from keeping the lungfish well fed but from my experience, lungfishes are always hungry so it’s kind of hard to stay on top of keeping it full all the time. Like
wednesday13
said, given how big/massive they can get, they can potentially do serious damage to other fish with just a “minor” bite. Personally, I wouldn’t be able to sleep in peace keeping tankmates with them. Probably would be too paranoid.