Hi! So our tank is pretty new but so far has been doing good. We have two small clown fish, a blue tang, a porcupine puffer, and a peony's niger trigger. We also have quite a few corals. The fish have been doing great, but the corals not so much. Please I don't know what's happening or what to do!!!! I need guidance. Oh also, we live in San Diego and get our water from the ocean. We just did a big water change two days ago.