They look like Little Rock flower anemones. They have a green mouth area and white arms. I do have 2 rock flowers in my tank, maybe they had babies? Or are they a pest anemone
It’s tough to be certain. They sort of look pointy like asterina stars. But if you’re saying they’re soft and you have rock flowers those are consistent with babies I’ve seen. Don’t look like majanos (tjough tough to tell) and def not aiptasia...
Try to get some better photos and then maybe @Ron Reefman can weigh in on if they are rock flowers or not?
Baby RFA have a fringe of white tentacles rather than just the 5 or more I see on these. But because of the photo quality, I still wouldn't say they are definitely not RFA. Here is a photo of about 6 of my babies near their parents. Notice the one near the bottom of the photo has 5 or 6 bigger tentacles, similar to yours. So it's possible.
Any chance to use a macro setting on the camera or cell phone? Or do you have a look down box so you can shoot straight down into the tank clearly?