I've got a green gonipora I picked up. tiny frag of a few polyps. I had it on my frag rack for a while thinking I'd give it a permanent location when it grew. But it didn't grow, it was down to one tiny polyp. So, I glued it to a low flow, lower light area at the bottom of my tank (that was a few months ago). The polyp is still there and there's two tiny polyps next to it now and possibly a fourth growing in. The polyps are so tiny, I'm talking probably less than a 1/16" of an inch in diameter. They wouldn't register on a tape measure, not much larger than the ruler lines. The only reason I can still see them is because of how vibrant green it is. So, now it's got three tiny polyps, all barely visible. I'm hoping maybe in a couple years the polyps will be inches long and thick like a normal goni. It's my under dog frag... I'm rooting for the little guy. I'm dosing trace elements. I've read goni's need manganese. I had no trace elements (ICP test) using basic IO water. So, I've since switched to reef crystals and dosing Red Sea A, B, C, and D weekly which includes some manganese. My phosphates are around .08 and nitrates around 22. So, water should be perfect for the poor guy. Maybe why it's got two new polyps in the last few months.
I'm hopeful for mine, but tagging along. I don't know what else to give the guys. Target feeding my tiny polyps would kill them. I'm feeding a little reef roids (broadcast feeding) once a week hoping that some micro fauna make it into the tiny mouths.
I wish it would start growing longer and thicker. Time will tell.