Should I be concerned?

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So I have a biocube 32. I know people say bristle worms are good but should I be concerned that I have at least 3 that I have seen this size in my tank(since it is a small tank)
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Not in my opinion. I have a 28g nano as well. I have a few of that size and have yet to have in issue over the past few years. They are beneficial. What is a little strange though, is seeing yours out in the daylight? Mine are only ever seen with the lights off. Maybe someone else could chime in about that?
 
I would not be concerned, they should limit themselves. Some folks just get freaked out over them, I guess they are a little to snake like. good luck just my 2 cents.
 
I just turned on the lights this morning and he was out. Dropped some pellet food for my shrimp/ crabs that he was going after. First time I was able to actually get a good enough picture to ask about them. He went right back in the rock as I was taking the picture.


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They're great mini cleanup for extra food that fish won't get, but if they get out of control you can always build a mini trap out of a water bottle with some food office and they'll crawl in for you to remove easily.

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I see bristle worms I get concerned. Not because I'm afraid of them, rather I'm allergic to them, and I've had them decimate a few corals. I got some macro algae in last week and there was apparently a bristle worm in the fronds that I did not see. Needless to say, after I had put it in the tank, my hand looked like it had been splashed with boiling hot water (blisters galore). Surprisingly, this time, it didn't sting as bad as it normally did, but boy was my hand a mess for days.
 
Wear latex gloves.
If worms are working on corals, btw, there's a problem with the corals causing them to slough tissue.
 
Wear latex gloves.
If worms are working on corals, btw, there's a problem with the corals causing them to slough tissue.

^^^^

The worms will not go after healthy corals there must be food lodged in dead tissue or dead tissue on the corals themselves maybe..


OP i will Catch with long tweezers very big worms when i see them. They actually seem to be creatures of habbit and go to the same places always.. Also if you seem to be getting more and more of them You are prob over feeding.
 
We have quite the population of worms in the 180g I take care of at work, but they don't really seem to bother anything other than people looking at the tank.

Do they eat/harm copepods and other sand living micro creatures?

We have lost 2 gobys over the past 2 years to starvation, even though they always eat the mysis/krill/etc that we feed so it kinda makes me think the bristle worms might destroy a pod population then the goby doesn't have food in the sand to eat? Or am I making a stretch here?
 
So I saw something about 6 line wrasses controlling the population. Live aquaria says 30 gallons min for one... think they would be ok in a biocube 32?


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So I saw something about 6 line wrasses controlling the population. Live aquaria says 30 gallons min for one... think they would be ok in a biocube 32?


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Yes, a 6-line can do fine in a 32g biocube but beware, they can terrorize every other fish in the tank. I had one for several years who was a model citizen so maybe I either got lucky with my 6-line's temperament or got lucky in how I stocked that there wasn't anyone he felt the need to go after.

Yes, a 6-line will kill every bristle worm in a tank that size. Personally, I'd just feed less and/or remove them manually.
 
Why I do not like bristle worms: Warning graphically disturbing. https://www.youtube.com/watch?v=pq08mk7zzb0

And that is exactly why you should never over feed your tank. Look bristle worms are detrivors(sp?), they eat detritus and other decaying material. They also self regulate. Meaning that if they have food, they multiply, no food and they die off.

All that link proves is whoever owned that tank, had a serious over feeding problem.
 
Bristleworms in great numbers were not put there by the easter bunny---they cannot reproduce without being fed; and if you're feeding that many you're apt to see a tank crash if they all disappear...not from the worms, but from the rotting food. Rot and slime or things of so small a particulate size it's near-slime---are ALL they can eat, since they do not have jaws, cannot bite. They have a tiny soda straw for a mouth, right to the gut, and if it's not slime, they can't do much with it. You'll see them make off with a small food pellet, sucked up against their mouth, but they have to wait for it to dissolve. The bristles themselves may stick in a fish: I've seen firefish get a real faceful; but they fall off after 3 days, no big deal. THey ARE a reason to wear gloves while handling rock: WE get sensitized to them over time (as to corals, etc) and they can be a problem for us, but they are too valuable a detrivore to eliminate from the tank. Crabs and snails cannot do what they do nearly as efficiently, into the smallest crevices.
 
I think they are cute and Cuddly.....

Bristle worms Deserve to live too.. I will once in a while pluck a big one from my Display tank.Its kinda odd how one worm will grow bigger and bigger but the others tend to stay small.. over feeding i agree does cause them to reproduce but sometimes you just get one that gets freaky big..
 
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