Looks like some closed up green star polyps. Can spread like a weed and is pretty easy to care for. Sometimes it just closes up for a while but it always opens back up.
Yep that is a green star polyp. Really not that demanding light or flow wise. Ive seen them close up for a couple weeks then just pop back up like nothing ever happened.
Do you have any other coral?
This looks like a zoanthid.
The second is a zooanthid of some variation, the first could be another form of GSP or some type of star polyp(kind of hard to tell from the blurry pic).
GSP is pretty cool, but can be very invasive if not kept under control. Either isolate it to its own rock on the sand bed, or just plain keep it on the sandbed. I started mine that way, and its now climbed up the back wall of my tank. In just over a year my GSP has easily quadrupled in size. It does go through periods of time(couple days to a week at a time) where it stays closed up, and then it will be open for weeks on a time even when lights are out. Pretty hardy coral and nearly impossible to kill.
does anyone know which coral this is and how to care for it? my friend gave it to me as a gift. the first day, it was open, but for the past 2 weeks it has stood like this. anyone know how to care for this? any advise please?!
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Looks like some closed up green star polyps. Can spread like a weed and is pretty easy to care for. Sometimes it just closes up for a while but it always opens back up.
No special flow, light, or feeding (photosynthetic coral)required. They thrive in all light conditions as well as all flow conditions. I originally had mine in low flow and it grew, now its in a heavy flow area and it continues to grow.
In the low flow area it was high light, in the high flow area its low light. Theres a reason GSP is called a weed, it grows in almost any circumstance.
I've never seen gree star polyps grow like that. It looks like some kind of Acropora starting to branch up and out.
Can your friend give you any insight as to what it is? How big were the polyps when they were out?
when i googled green star polyps, it looks exactly how mine looked when it was open
Fair enough. That's not a normal growth pattern which is what through me off.