What are these growing in my overflow?

[Tiki Reef Joshua]

What am I looking at here? I always keep it covered tight. Not much light gets in. Aiptasia?

 

[melonheadorion]

im thinking aipstasia

 

[tripdad]

Yep, aptasia

 

[Jekyl]

im thinking aipstasia

+1

 

[reeftivo]

yep aiptasia

i have about 50 or so in mine.. tried eliminating them once by draining the overflow, smothering them with kalk paste, then scraping them off, but the buggers came back. make sure to run filter socks before you try eliminating them so they don't dump kids into your sump and eventually the display. if any make it to my display my CB butterfly makes quick work of them.

 

[Double monti 61]

They are great filter feeders I have some in my filter also but none in the tank I also have a peppermint shrimp so that may help

 

[Tiki Reef Joshua]

Yea…. I have filefish that keeps the display pristine, not worried, just curious. I didn’t know if there was something weird in there. Thanks!