Hi all. I'm new to salt water kept fresh water tanks for a while now. Needed some advice. I've been doing a lot of research on the corals I have. The tank I got was passed down from a. Friend of mine who's an impulse buyer and I don't think he knew a lot about it. Luckily he did get it cycled and stable so that was a plus. But after a few weeks of having this aquarium I have questions. Biggest question right now is what's going on with this hammer head coral I got. It looks like it's forming 3 mouths near the middle of the coral two at the top and 1 larger one at the bottom, but I'm not sure what that means. Is it a disease or is it splitting up? Dying? It does puff up during the day really nicely like I believe it's supposed. Took the photo at night as it's the only time I get to see the openings. Internet is unfortunately not really that helpful when talking about saltwater thought I would give this a try.