hydriods

[gobytron]

Originally Posted by monocus

it looks like you have aptasia-nothing like my hydroids.i'm getting upside down jelly fish from mine.the end of the stalk(pollup) pulses on mine.they eventually break off and i get upside down jellyfish.try prodding the head.if it retracts into itself you have aptasia

Those are hydroids for sure...
upside down jelly fish??

Hydroids will also retract when you touch their "crown"

I have tried every trick in the book to rid my tank of these as they do sting some corals and can grow prolifically.

NOTHING works though.
The epoxy trick might work if you have 1 localized patch of them but in my experience, they just grow through or around the epoxy in little time.
now I just suck it up.