I bit the bullet on some inverts. I have a few small aiptasia in my live rock, so I bought two peppermint shrimp from my LfS. While I was there, I also bought two cleaner shrimp, two emerald crabs, and a humorously large purple short spine urchin. I may ultimately ask to exchange this urchin because it is much larger than I realized! She all ready mowed down two large pieces of seaweed and shows no signs of slowing!