I had my brownbanded bamboo shark in my 420 FOLR for 2 1/2 years. It grew from 7" to 25".
I had it with all kinds of fish. 4 angels (emperor, flagfin, queen, personifer), 4 tangs (yellow, PB, Sohal, naso), Moorish idol, Red tail butterfly and random other fish.
No compatibility problems for the shark.
Over the 2 1/2 years, I did lose a number of fish to it: royal gramma, 3 large chromis, filefish, to name a few.
I recently sold the shark. The reason is that ultimately, I feel fish and sharks don't mix well. Fish need/want lots of rockwork, caves, hiding places, etc. Sharkie needed LOTS of open swimming room, and crashed through any and all rockwork. I kept pulling more and more rock out of the tank, and it looked crappy.
HTH