[zxc741]

I have a 39gal fish only tank. I would like to add a new fish. I have two maroon clowns four, yellowtail damsels,two sand sifting stars and about 20 snails. Any Suggestions?

[Ninong]

I'm afraid I don't have any suggestions for additional fish if you already have two maroon clowns and four damsels. I wouldn't add any more fish in a 39-gal tank, especially one with a pair of maroon clowns.

Unfortunately, your sand-sifting seastars probably won't survive very long in such a tank. They really require a very large sandbed loaded with infauna to thrive -- something on the order of at least a 300-gal tank for just one 4" sand-sifting star.

[zxc741]

I am going to move the clowns and stars to my 100gal and i want something to go with them

[leebca]

I'd return the stars to your LFS or sell them/give them away as soon as you can. The 100 won't be large enough for one, let alone two. You'll need more snails and a larger/appropriate cleanup crew.

The fish you have are not known for their 'community' nature. They are belligerent fishes. The two Maroon Anemonefishes will likely mate and 'run the 100g tank.'

Your choices of fishes will need to come from the group of fishes that are assertive, if not themselves on the aggressive side.

Because of the size of the new tank, I would avoid all Tangs and Large Angelfishes. Butterflyfishes may find it difficult to get along with the current inhabitants, so that would leave that group out. More damselfishes will likely cause compatibility problems, so there they go on the "No" list.

You may want to look into choosing an assertive wrasse or hawkfish that won't get too large.