sqwat, thanks for the input. For some reason, I'm very easily alarmed ever since I started this hobby. Well I'm worried because my tank isn't doing too well, polyps aren't opening as they used to and I have no clue why because I've tested and retested my water many times and they are spot on... I'm feeding corals phytofeast, golden pearls, mysis. I haven't try oyster eggs yet but I will try. Where can you order oyster eggs? are they available in local markets?