Yes! Thank You! I feel like like if it’s a wild anemone and you don’t buy them in LFS the immediate response for most people is ...Aiptasia ! Kill it!I'm going to throw the proverbial monkey wrench into the whole Aiptasia belief trend with my personal experience regarding the large ones. (Again, just my experience.) I also had a large one like this that I could not get to due to it's position in the tank. So I started planning on how to get rid of it. With so many cures being hit or miss, I figured Berghia nudibranchs would be my best bet. But buying a bunch of Berghias for one Aiptasia seemed a little overkill for critters that only ate Aiptasia. So I decided to wait until it started to spread... and waited and waited and waited. The "Aiptasia" just kept getting bigger and bigger and never did spread. After 3 years I picked up a Copperband which slowly whittled it down by eating the tentacles causing it to shrink down into oblivion. I have never found another. Doing a little research, there are so many anemones that look very similar. Are they all super spreaders?
Has anyone else ever experienced a similar situation with a single "Aiptasia" that did not spread? (@revhtree , QOTD idea.)
@Charley75 , how long have you had this one?