sorry it took so long to reply, I missed the thread being alive after I posted. I had 2 peppermints, they ate all my aptasia when I first set up my tank. I currently have a coral banded shrinp in there, it's well behaved and very cool looking, but there do try to catch fish when they get big, or so I've heard.
I had a pistol in there at one time, saw it for 2 weeks, heard it for another, then nothing in a year. I thinkit's a crap shoot if they build a burrow where they are visable.
Now that my 29g is empty, I'm going to kill the hair algae that has seriously taken over the tank, looks like a forest nymph's bed, soft fluffy and green. Once that is gone, I's love to make it a showcase for a nice mantis, but the girlfriend wants seahorses, so...
I like the look of blood shrimp/fire shrimp, but have never owned one. Harlequins are also very cool, but they are not a beginner critter, as they ONLY eat star fish feet (and some urchin's feet).