As far as the bagarius, it has big teeth and a big appetite I don't think your other fish would be safe, they are hard to find but so are giraffe catfish depending on where you live I guess. I don't think you'll find many other people keeping bagarius with lots of tankmates unless its short term/for sale at the store. They can tolerate the warmer water if acclimated to it to a point but would probably prefer cooler temps similar to their native habitat much like the chinese high fin sharks can take heat but do better in cooler temps. Again sorry for the incorrect info in my other post, good luck with your tank though either one would be cool. ~Trent