With sw fish 2 very seldom works. Except w a pair of clowns. 1 gramma is fine. Chromis are iffy. You want odd numbers of them generally 5, 7 ect. A 36 by sw standards isnt big so unfortunately your stock will be limited
Ha ha before you did your edit iam like OMG!!!! I would loose the damsels. Unfortunately probably the mandarin too, unless you can find a pair eating frozen foods. Try a coral beauty angle or rusty angle. Your pair of clowns and hawk are fine
If i was guessing yes. Your adding 85 for gallons. Flames are not the nicest to begin with, so adding it in a small qt isnt ideal. Once in your 90 i would think it should be fine