polyps are 2-3 mm. any opinions? They have been in my npt since these were taken under a scant 18w reuglar flourescent tank light. They stay open and seem fine so far.
I have some in my tank from my LFS he was giving them so I grabbed them for my sump and in my tank at the top. They seem to be fine too. If they are doing well might as well keep them in there.
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