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@riveradaniel thank you!All of the coral with the green center are zoas, I can't quite tell what the other is.
What gives it away? Normally the size makes it more clear to me, but how could you tell this time?The green ones are Palythoa, similar to zoanthids
The polyp shape and color. Zoanthids will (usually) have a much more vibrant color, and this green is common in Palythoa, also polyp shape, zoas will have thicker and longer "frills" at the polyp rim and also have just a general different shape.What gives it away? Normally the size makes it more clear to me, but how could you tell this time?
That makes more sense. The lady who sold them to me said they were palys, but with them being so small I wasn’t sure. They were in a horrible tank situation. Pretty sure they are just starved from light. They look like they are either the Metallic Greens or Captain Jerks.The polyp shape and color. Zoanthids will (usually) have a much more vibrant color, and this green is common in Palythoa, also polyp shape, zoas will have thicker and longer "frills" at the polyp rim and also have just a general different shape.
@encrustingacro was I right?
The image is low-resolution which makes it hard to tell, but you are correct; those are Palythoa (cf toxica). P. toxica has a very thin oral disc, thinner than any Zoanthus, and thin tentacles. Palythoa also has a sandy mesoglea—this is the best way to differentiate Zoas from Palys—and occasionally have capitulary ridges.The polyp shape and color. Zoanthids will (usually) have a much more vibrant color, and this green is common in Palythoa, also polyp shape, zoas will have thicker and longer "frills" at the polyp rim and also have just a general different shape.
@encrustingacro was I right?