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Old 07/25/2017, 12:11 AM   #1
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Brisle worm invasion

HI I have a question about trying to kill Bristle worms that have invaded my green star polyp Coral I had my green star polyp coral on my sand bed and the bottom grew closed so it makes little canals or tunnels in the coral and I now have a lot of bristle worms living inside of the coral what would be the best way to kill them and get them out without damaging the GSP

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Old 07/25/2017, 04:20 AM   #2
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Some wrasse will eat smaller ones. A small sized fish trap baited with a piece of shrimp overnight might attract them in - I've never needed to try a trap because I have 2 wrasse that I think eat them and keep their numbers very low.

120g (US) DT with 40g (US) sump. Softies and LPS. Shrimp, Emerald Crab and CUC. Red Fire Fish, Tangaroa Goby, Bicolour Blenny, Sunspot Goby, Exquisite Wrasse, Royal Gramma and Red Velvet Wrasse
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Old 07/25/2017, 07:05 AM   #3
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I gave up worrying about bristle worms. They are good for the tank and the numbers will stabilize on their own.

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Current Tank Info: 90 gallon, 2x maxspect R420R LED, 4 Ocellaris Clowns, Bicolor Blenny, Yellow Eye Kole Tang, Flame Angel, Foxface Rabbitfish, Banggai Cardinals, cleaner shrimp, serpent star
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Old 07/30/2017, 04:26 PM   #4
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I believe a six line wrasse will eat all that up. Atleast in my tank they did n i dont see them anymore.

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Old 08/17/2017, 09:12 AM   #5
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A wrasse will keep them in check, but overtime they've become considered lest pest and more of a danger while handling rocks. I've been stung by one that way, and it wasn't fun.

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Old 08/18/2017, 11:09 AM   #6
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If bristleworms are invading a coral it probably means that coral is having trouble. The worms, by eating decaying flesh, can actually help a coral survive. See what might be the trouble with the coral. Are others ok? Alkalinity around 8.3?


Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low.

Current Tank Info: 105g AquaVim wedge lps reef: 3 firefish, yellowhead jawfish, yellow watchman, 3 chromis, tailspot/starry blennies, pink margin fairy wrasse, mandarin, kalk, radion pro, gyre, Eshopps s-200 skimmer, basement sump.
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Old 09/06/2017, 09:17 PM   #7
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Do not put a six line wrasse. They are evil. Put an Arrow Crab. They are easy to catch in case they grow too big and are causing issues.

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Old 09/07/2017, 04:55 AM   #8
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2nd the arrow crab . They seem to relish them and I love seeing them pull the bristleworms apart . Some bristleworms are not benign as some think . Yes I think they are good for a sand bed but I also think there are some types that are dangerous . Trying to figure that out is difficult .

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Old 09/09/2017, 04:47 AM   #9
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I second what Frogman said. + They are a vital part of the cleanup crew. If you want to keep their numbers down make sure your not over-feeding your fish and when doing water changes vacuum the gravel to remove more waste that is feeding them.

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Old 09/22/2017, 12:51 AM   #10
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Agree with carrots. they will stabilize themselves and any population explosion is most likely due to lack of siphoning and overfeeding

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brisle wor, green star polyp, gsp, invasion, soft coral

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