what are these palys?

[koa25]

The green ones randomly popped up in my tank when i brought home a piece of dry rock. And the purple ones grew from two random heads on a shell. Cant seem to find them online. Curious if anyone knows what they are. The green ones are awesome. Love them.
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[Mr Cob]

The first ones should be bright green... and they are Green Implosion Palys (aka button polyps/palys).

Not sure on the second ones.

[koa25]

Thanks rob. Look them up. Seemz to be them. They have a red not brown strip. Are the pretty common? I'm getting mixed reviews online. Somepeople say common. Others are not so common. Yeah. I think I'm sol on the purple ones.

[Mr Cob]

They are hardy and grow fast... which would normally make them common, however I never see anyone selling any.

[koa25]

I'd say they are hardy. They're growing on a piece of lr the size of a baseball that was dry rock. Sat for a month at my house for a month after buying before i even tossed it in my tank. Then a month later boom. First little head. That was almost a year ago. I only have a half a dozen heads now. But little babies ready to pop soon. I see sites selling them for 15-25 bucks a polyp. That seems a little excessive. Crazy. Much appreciated rob. Guess i'll have to be patient ontl those purple ones until i can stumble on them.