Unless that looks amazing under blue lights, kill it by sealing it in a plastic bag and throw it in the trash. wash your hands afterwards or even better wear gloves and eye protection and then stick it in a plastic bag and seal it.
Your other coral id choices are awesome. This one not so much.
It will grow explosively and sting/crowd out your other more expensive, beautiful choices.
Some paly's are beautiful, but they all contain paly toxin and they are all aggressive growers and kill nearby corals.
We have 5 different varieties of large paly's. They are isolated from the other corals. No problems for years. All of them have better colors.
You deserve better corals than that 1 particular polyp!
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