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Bobit worm?
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Looks like it to me
Gulf rock. So not likely a fish or coral threat? There is plenty of scrap food in this tank with 50 fish.It is a Eunice worm. No idea if it is a bobbitt or not, but highly doubt it. Did the rocks come from the Indo Pacific? It is most likely one of the Eunice worms that come from our Gulf live rocks. They can grow big and be opportunistic but are for the most part detritivores that clean up junk. I've been suspicious of them for mystery snail deaths but never seen one of mine attack a snail or anything else for that matter. Mine did go nuts for flake food, though, and I almost caught one once bating it with flake. They are lightning fast though and retract into their holes very quickly.
Don't think wrasse will go after itAny chance it is small enough that a wrasse will eat it? Or do they not go for those?
This one is very small, but it is considered a threat to the fish and coral?@ISpeakForTheSeas @EeyoreIsMySpiritAnimal either if you know if any aquaria livestock can remove a Eunice worm? Arrow crab, maybe?
I don't know. I think they do well with detritus, and these aren't the ambush predators that true bobbitt worms are, but I suspect that they are highly opportunistic and would go for what is readily available, especially if they are hungry. I had them in a tank with clowns and never noticed any attacks or injuries to the clowns, but I was never sure about snail deaths. I never observed any attacks on corals like zoas or blastos or acans that were nearby, and they left the shrooms (rhodactis and discosomas) alone--I observed them around the shrooms often since they were next to one Eunice's hole.This one is very small, but it is considered a threat to the fish and coral?
An arrow crab would be my first suggestion to try, but I’m not very confident it would find and take out this specific worm, especially if there are other worms and enough feed in the tank.@ISpeakForTheSeas @EeyoreIsMySpiritAnimal either if you know if any aquaria livestock can remove a Eunice worm? Arrow crab, maybe?
It's definitely a Eunicid species, but not necessarily a bobbit (in fact, I'd guess it's likely not a bobbit, as those tend to burrow in the sand) - there are a number of Eunice spp. and Leodice spp. that look like this (i.e. that look similar to the bobbit, Eunice aphroditois).
The handful of species that I've looked at that look like this are probably not ones that you'd want in the tank though.
it’s one of only a few small pieces of live rock I used to seed the tank to try and stop the dry rock problems.I would honestly just take out the rock you know its inside of and dispose of it just to save you stress from having to worry if its going to go full rambo on ur tank inhabitants in the future.
i think they stay in the rock they made their "home" inside, the ones i had in my rocks never left the home they created they never ever went outside the holes.it’s one of only a few small pieces of live rock I used to seed the tank to try and stop the dry rock problems.
Is it likely to move or can I give it some time to get the biome spread.
putty and super glue won’t solve the problem I assume?
I’ve had some move over time, and others that never movei think they stay in the rock they made their "home" inside, the ones i had in my rocks never left the home they created they never ever went outside the holes.