They do look like some majano that I've seen. But the big problem with majano anenomes is that they reproduce and spread so quickly. If these aren't doing that, then possibly something else.
#reefsquad ... let's see if anyone here has more experience with these.
I'm right in line with Idoc. They look a LOT like the Majano anemones I had one time. IMHO they are not nearly as bad as aiptasia, but in the right environment they can reproduce fairly quickly.
A shiver just went down my spine. I can't say for sure this is what you have, but it sure looks like a Cribrinopsis crassa anemone.
About 15 years ago there were a bunch of anemones for sale, being sold as GBTA's. I bought one! Nice looking anemone. These were all the rage......All my friends had one, and if they didn't, I'd give them one. don't have a good camera, but here's a picture:
Within a month it split.....never got very big, slightly larger than a quarter. And again, about a month later those split, and before you knew it, I had over fifty of these little guys. I eventually found out that they were Cribrinopsis crassa anemone, a small anemone from the Mediterranean. It never gets big and reproduces like rabbits. I spent a day plucking all there guys out!
Again, not saying that is what you have, but if you have a dozen of so within a couple months, there's a good chance.
I currently have majano anemones and those don’t quite look like them. Majanos don’t have the bulbous tips. I’m with redfishbluefish, that they look more like the ones they described.
But after YEARS of dealing with majanos covering anything and killing everything, I adopted a new philosophy...