Critter or something on coral

[mosertree]

I have had this sympodium coral in my tank for a few months now. About a week ago I started noticing this thing? - polyp or something. It sinks into the rock at night. Does anyone recognize it?

 

[KingTideCorals]

Looks to possibly be a pest anemone.. my guess Aiptasia

 

[mosertree]

Looks to possibly be a pest anemone.. my guess Aiptasia

That is what I was afraid of. So a syringe with hydrogen peroxide?

 

[KingTideCorals]

That is what I was afraid of. So a syringe with hydrogen peroxide?

Or kalk paste.. my usual treatment. Have heard good reviews for F-Aiptasia