Stocking suggestions

[michika]

Are you hoping to do a fish only? A reef? SPS dominated, LPS, mixed?

From what you've posted, I would suggest a combination of the following:
- a dwarf angel for color
- if you have a lid, firefish
- chromis are nice, cheap, and they often school. This in turn seems to keep other more skittish fish out in the open more often.
- a blenny, FYI its noted that some may nip clam mantles
- jawfish, again a lid is highly recommended
- some butterflies, one from another reefer is often a good choice, but they aren't the hartiest of fishes. They are a bigger fish though, so its kind of an ify suggestion.
- gobies are pretty cool fish with tons of personality.
- cardinals
- wrasses, although I would suggest a sixline

I'm sorry I can't really comment on a cowfish, I've never kept one. However, I can comment on cleaning shrimp. They are an awesome addition, they scavage for food on the bottom, help keep your fish clean, and are generally pretty cool to watch. I've had both the skunk and the fire/blood shrimp variety. Both I have found to be hardy, will readily lay eggs if you have a pair, and are just plain cool!

If you have library access, or have a LFS which has books, you may want to try flipping through Scott W. Michael's Marine Fish book for a quick overview of fish that may work for you.