Hydroid Digitate....

Reeflogic

New member
Soooo....I'm hoping someone here has dealt with these guys and give me the answer that Google couldn't... One thread you read says you might as well cook your rocks, while the next says they will disappear in a few months, I guess essentially starving. Doesn't seem to be many predators for it either, some suggest emerald crabs...

I am not sure what got them started in my tank, have been pretty religious with frag drips, etc. Bottom line is I noticed them in a few areas while my tank was fallow and at that time (2 months worth) I was only feeding the corals and my BTA's and I didn't even really pay much attention to them as I assumed they were worms of some sort and there were only a few. I then started noticing more and more and now it seems like a problem, with dozens of them throughout the rock and sand bed, pretty much anything they can attach to.

They look like hairs, sweeping around and they are touching some of my frags, but the frags do not seem to be affected, as some folks have suggested in various reads on the innerwebz. They are not the hydroids that form colonies, they are just randomly attaching on the rocks, etc.

I "borrowed" this image off a random site, because I would like folks to know exactly the type I'm referring to:

View attachment 18800

Since I am about to move and I will be breaking down the tank and setting it back up in Michigan, I was thinking of just killing the rock, which i hate to do...most of it is dryrock to begin with, 90% of it, but it's starting to load up with stomatella snails, pods and FINALLY coralline. I know I will likely lose some coralline, but has anyone dealt with these and found that they do simply die off after a few months or should I just start over with the rock?

At this point it's mostly just the unsightliness, as I do not see any adverse affects with coral stinging or anything, but if they continue to multiply at the rate they seem to be now, I could be in trouble... Anyone with experience on these guys, please chime in! Thanks!
 
I had them in my tank and they just eventually disappeared.
I had a hard time finding info on them also.
They multiplied profusley before they simply went away.
They didnt really seem to bother anything just an eye sore, I hated them.
 
I think I have these too. Just recently noticed them and have a good amount of them. Do yours look like yellow and black alternating? Mine do. I know nothing about it so ill be seeing what others say about yours.
 
Yes, the yellow ones seem to be the ones that colonize, from what I have seen anyways. Culprit, THANK you man, was about to go ape **** looking for concrete proof that these would vanish in due time. Really appreciate the quick response.
 
I never new what these were ive had em before they did just dissapear thought they were harmless worms oops any way they gone.
 
Thanks Nate, I did a search here first for Hyroid and didn't come up with much, should have typed in fuzzy+ tentacle ;)
 
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