Is the population large enough to cause problems for you? I was able to significantly reduce these (and vermetid snails) by stopping broadcast feeding and running filter floss to reduce their food supply. I’ve also tried bumble bee snails, wrasses and reef snow (calcium carbonate) but I didn’t...
These look identical to the ones I have my tank. I had the same question when I first saw them and my research led me to digitate hydroids. Unlike vermetid snails, they have a whitish mass towards the end and tiny hair like structure.
Looks like digitate hydroids. I have a few in my tank as well, they don't seem to cause much trouble at my population level. They can apparently irritate corals if their numbers grow. Fenbendazole may work, but research treatment as it will kill lots of other stuff!
Yeah, it's very annoying. No option to remove the ad feature that I'm aware of... They were ~$300/pc for just the fixture. I paid an extra $75 for the mounts/hardware.
It's a good idea, I really wanted to increase PAR over a larger area though. I still may put one on the remaining kessil to create a hotspot for higher PAR.
A couple of weeks ago, I swapped out two Kessil 360x for knock off XR30s. The goal was to get more PAR to hopefully improve Acro growth and color. I got the "Pro" versions which come with CREE LEDs. As expected, these put out a ton of par. I made the initial mistake of running them at 80% right...
@MichaelB is there any desirable photosynthetic stuff in your 210 right now? Could you just blackout the tank for a week or two to get rid of it?
Edit: nm saw your journal. Moving the coral and blacking out the tank still could be an option?