removing hydroids?

[das75]

Got a few colonies spread through the tank. All I can find to get rid of them is cut back feeding, but think I'm a a minimum now for my fish load. Skimmer is also working fine.

 

[Agu]

They're pretty much impossible to remove.

The most effective treatment I've found is to cover them in epoxy putty and put a shell or rubble on the epoxy to hide it.

 

[Salamander]

They've always eventually popped up around the epoxy when I've tried that. I've had best luck using a drill and masonry bit. Their tubes go deep so you have to dill pretty deep. But it provides a good spot to mount frags in the end.