Yeah I am pretty comfortable with my water.Mg a little high after dosing unnecessarily following bad Red Sea Mg testing kit. Will get that with a decent NSW waterchange. The lights are just fine but only modest and in line for replacement with something good as soon as budget allows...have an eye on Photon 48s from Reefbreeders.
I feed a small piece of fresh prawn(shrimp..?) about fingernail size to my other good BTA and a larger piece to the bigger (gnarly) BTA..I was doing this 3-4 times a week and it was after some time on this regime that the larger one started developing these lumpy gnarly tentacle bases in place of tentacles. I never feed them anything but fresh raw peeled prawn cut into these small pieces...they have always grabbed them. I stopped this a few weeks ago thinking that the feeding might be the cause... but dont think so now.
Arent they interesting animals...? the other one came from an LFS snow white with pink tips, went to death's door for as long as a month or so, and now has long greenish brown healthy tentacles. This problem one in question came in green, doubled in size with feeding, went whitish as though partly bleached, and then started this gnarly screwed up thing. Neither has ever had a single bubble tip at any stage.
Loving my tank, but I reckon I am approx 100% deficient in understanding anemones.
Adding one more pic of the sick one and two of the strongly recovered one living at the exact same address.
Two Perculas swap all day from one anemone to the other, sometimes together sometimes one each, they really seem to be to be poking the twisted one as if trying to stimulate it but that could be my imagination.