Brown Hydroids

[Slyguy00]

Those things r a pita. Iv had some success with aptasia x. But thats 50/50

[Coasting]

I had some in my first tank, pulled the affected rock out and tried to burn the hydroids off, fire lots of fire.... They all survived. I don't think Coral RX will cut it.... Getting rid of the rock they were on helped in my case.

[hillegom]

I have had those. I agree, they are a pita to remove.
Also tried the fire trick. Took rock out and burned them with a propane torch. This never killed them all, would always come back. I think too much water in the rock keeps the roots alive,
I also got rid of the rock, dried it out, and its still dry, not knowing what to do with it.
I had another rock that had 3 hydroids on it. I took a large syringe, one about an inch in diameter, and filled it with boiling water. I had to do that about 3 times and they never came back.
I don't understand why that worked.

[Zoaelite]

Worst.

Denny (Reefwars) shut down his whole system and did a redo because of these nasty little things.

My vote is buy $50 work of epoxy and smother EVERYTHING, after a couple of days take it off and you should be okay.

[MarkoD]

Fml

[MarkoD]

at least i think its hydroids. could this be just small feather?


it seems to have a tube.

[Slyguy00]

That looks more like a feather duster to me, I have a few of those in my tank that don't seem to bother anything.