ID this for me please

ASIN28

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Does anybody know what these are? I went from one, to them started to spread on the rock. Good or Bad?

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Gtinnel

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I think whether they are good or bad kinda depends on if you like them. They are just a fast growing palythoa.
I bought a frag of one head about 6 months ago and it is now probably 30 or so, but I've kept them contained to one rock.
If you decide to remove them be careful I'd suspect they contain palytoxin.
 
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