I traded a guy this frag for half my chaeto. Since chaeto grows so fast I didn’t really care what I was getting out of it just needed some gone since I had no more room. Only thing that I can think of is Green Hydnophora but I looked at pictures on liveaquaria and it doesn’t seem to look the same. Maybe the frag is too small to tell. He told me the frag is aggressive and has sweepers at night.

