I would say dwarf angels, clowns, anthias if they are large enough, wrasses. Other semi-aggressive to aggressive fish.
He'll be fine with corals but he will eat a clean up crew.
There are several different ways of introducing fish and corals, most people have a qt but some like me don't.
Here's how I introduce livestock:
1. Take the rubber band or whatever was used to seal the bag and take it off.
2. Get a CLEAN bucket. Preferably never used! It should be marked AQUARIUM USE ONLY! Definitley not a bucket that was used to clean the floors with!
3. Take the livestock out of the bag gently. pour it into the bucket with the water from the bag.
4. Take some clear airline tubing, smallest width possible, and put the one end in the bucket and the other in the tank. Start a siphon.
5. Tie a part of the tubing in a tight knot, about 6" from the bucket.
6. Water should be dripping in the bucket from the tank in a steady stream of drips. you should see each individual drip, but they should be one after another. you can adjust the speed of the water flow depending on how tight the knot is.
7. let the livestock sit like this for an hour and a half!
8. gently loosen the knot so it drips a little faster for half an hour
9. completley let the water loose and let that sit for another half an hour
10. it should of been drip acclimated for about 2 and a half hours.
11. take a net and move the fish into the display or quarantine tank
12. for corals or anemones, use your hand but make sure the anemones don't sting you!
Good luck!
