Takes patience but highly effective, take a soldering pencil (hot), take the rock out of the water, cram the hot tip of the pencil into the nook or cranny that the aiptasia retracts into or is on and burn them out at the base.
because of quantity it will probably take a few...
My tank has been up for 5yrs, I used to scrape the glass about every 5 or 6 days, now I scrape it every 10 or 11 days with no changes in the water, lighting conditions, or stocking. WHY?
