Coral ID

Bunniko · 2026-09-14T00:52:54-0400

Can anyone help identify which type of coral these two are? The green one (if it's actually a coral), just started appearing on a small rock. It has one small mouth in the middle and the coral itself is thin and "leafy" (the best way I can describe it) and does not inflate. Within several months, it already has 6 small heads. The orangish coral after being dormant with only 2 heads for about 18 months, started producing more heads within a few months. I inherited this tank setup about 2 years ago from a friend that moved overseas. I only did fish some 20 years ago, so corals is a new venture and still going through the learning process. I pretty much do just the very basic care with the high-tech gadgets he had installed and just leave it alone (if it's not broken, don't fix it, mantra). There's a few fish all hiding when the photograph was taken. Anyway, if anyone can ID the coral(s), I would appreciate it.

kevgib67 · 2026-09-14T07:27:39-0400

The green ones appear to be mushroom corals and the red a blasto coral from what I can tell you from the pictures.

StartingATank · 2026-09-14T08:10:13-0400

Agree with what is said above. But the first one has a slight chance to be an elegance, do they split?

Bunniko · 2026-09-14T08:12:40-0400

Thank you for your help. It's weird, the green mushroom coral all the suddenly began to appear and propagate on this single small rock. It didn't split, just more heads popped up. It must have hitchhiked from something, but I haven't introduced anything for a significant time now. I read right now that mushrooms can become a nuisance, so it might be better for me to remove it and give it away to one of the local reef tank hobbyist (or store) who may want these. Thank you again for your assistance.

kevgib67 · 2026-09-14T09:08:56-0400

Bunniko said:
Thank you for your help. It's weird, the green mushroom coral all the suddenly began to appear and propagate on this single small rock. It didn't split, just more heads popped up. It must have hitchhiked from something, but I haven't introduced anything for a significant time now. I read right now that mushrooms can become a nuisance, so it might be better for me to remove it and give it away to one of the local reef tank hobbyist (or store) who may want these. Thank you again for your assistance.

You can always just keep that rock isolated as well so it’s not touching any of your other rock structures.