Its quite "aiptasia" looking, but there are loads of different species, if I recall. They are quite diverse, but do pack a punch. Might be better safe than sorry. Here is a big thread on it:
https://www.saltwaterfish.com/vb/show...a&pagenumber=3
FWIW, scallops are not particularly hardy critters...and whatever you do DON"T MOVE it. They really must be left to go where they want, and they WILL move on their own Moving it is a stress. They should be fed daily with a mixture of phyto and zoo plankton, but most tend to starve in 6-12 months unless they have very directed DAILY care. They actually feed on very particular particle size food - VERY SMALL particles. Rob Toonen wrote an excellent article on them. Searching with his name and "flame scallop" on google should bring it up.
I'm not sure I agree on the limewater during water changes....
IMO - 30% water change once a month total - break it up how you will, but about 30%.
Use RO water, let your water mix a few hours if not a few days before doing a water change. Try and put a heater in so you don't shock anything with temp change, and check salinity and pH of your new water versus your tank water to avoid major shocks.
IMO, you do not need to add supplements except for calcium...water changes will handle the rest (iodine, strontium, etc). Test for ammonia, nitrite, nitrate, alkalinity, pH, specific gravity...also calcium, and perhaps phosphates).
Specific gravity should be 1.025-1.026, depending on temperature.
