Selecting Fish

Question
About 2 months ago I purchased a 225gal aquarium and have went through the cycling process I am an experienced aquarist but am looking for a challenge I was wondering if I could mix a dragon goby 2 bala sharks and 3 needlefish I have done my research on all three and i belive its possible but I would like an outsider opinion.

Answer
Hey Dan,
Dragon Goby, Needlefish.... yes, they should get along and get used to each other. Bala sharks are a fresh water fish, so no to that one. Despite the name they wont survive in a marine environment. At the most you could acclimate them to a heavy brackish(sg 1.010) but then the other 2 species cant be in that environment. I would pick a different 3rd. Let me know how it goes.