thanks for the advice, I'll probably skip the blue linkia then and probably the brittle star. I really like their look, but I want to keep them healthy and happy, too. I've never had an aggressive goby, I've had a few saltwater and even a freshwater goby so far. I think they're probably my favorite fish. I had a yellow clown goby briefly, but my 3 stripe damsel harrassed him something awful and I think he must have died because he disappeared one day never to be seen again. I have a yellow watchman goby and he's just so fun to watch. He is fairly timid, but if you get in his territory he'll open his mouth as wide as he can, puff up all his fins, and charge, no matter the size of the invader. I love it! As for the peppermint shrimp, I don't think I'll be having any anenomes in my tank, just corals for the most part (someone here told me they probably wouldn't work in my tank-12 gal. jbj deluxe), but the aiptasias are popping up here and there at a rapid pace (at least I'm pretty sure that's what they are... this is my first reef tank) so I'd like to keep that population in check. Do you know how cool I would need to keep it for them? Would it be too cold for the other tankmates? Thanks again! I appreciate it!