Anemone in an aggresive tank?

actually you can keep some coral with these fish. What makes some fish not reef safe is the fact they will eat your inverts. As far as fake decorations go, I was at tasha6 house one afternoon looking in one of their tanks and go wow, thats a really nice welsi. turns out it was fake.I only looked at it 20 times over the last yr.

 

best i can tell you is too put a fish list together and then research each one. some will be fine others wont.

 

From what I've been reading the biggest threat with the coral nippers are the sps and lps and that the more noxious soft corals are less likely to be preyed on, but that is based on what I've been reading in forums and mostly regarding butterfly fish.

 

The fish you mentioned are snail, crab and shrimp eaters, hence not reef safe as Mike said. Triggers, puffers and eels are most likely not going to bother coral except to knock it over. Almost 100% they will not bother a Nem, I wouldn't worry about. I have two big Nems in my agressive with a large puffer, snowflake, 2 groupers, and a Picasso trigger they never bother it or the corals in the tank. Put a crab in there though and look out!
I am not real familiar with the Tusk though but I am pretty confident he will be fine as well. They are built for inverts as well if I am not mistaken.