Upside down jellyfish?

[S37h]

Has anyone else had an outbreak of these in their tank? I have little baby colonies on just about every rock in my tank, could this be bad in anyway?

 

[KJ]

Welcome to R2R!!!
Did you have any pictures?

 

[cmcoker]

Do they resemble these?
http://www.melevsreef.com/critter/orange-ball-anemone

If so they are generally ok, may irritate some corals, like when I have had them pop up in the middle of a zoa colony.. may try reducing feeding, they seem to bloom if I am feeding heavy..

 

[S37h]

Welcome to R2R!!!
Did you have any pictures?

Here’s 3 of the bigger ones I saw floating around, they seem to attach to the rock until they are big enough then they let go ‍ I tried a video but it wouldn’t let me, I’ll work on getting better shots

 

[S37h]

 

[Tyler_Fishman]

Hydroids?

 

[S37h]

I belive they are coming from baby brine shrimp eggs, I have hydroids pop up every now and again , but that orange ball anemone also strawberry anemone is not them but I did find one the other day in a zoa colony