baby anemones

This is the second time this has happened in my tank, but I had a few new baby rock flower anemones pop up. Below is one pictured, you can see it in the center left of the photo. It looks like a little green and white one and I'm so excited to see how it looks once it gets bigger 😁

Anyone know what this is? Doesn't look like aiptasia or majano or any pest anemone I've seen. Almost looks like a baby euphyllia, but I'm not sure. Has the slightest green fluorescence under blue light.

I’m brand new to saltwater aquariums and my brother gave me a live rock with a bunch of very very tiny red anemones on it. All of them are maybe about 1cm or a half inch in diameter. I already have a tank of just sea monkies (it’s 5gallons with a FluvalSmart nano UV light, an air stone with a...