Are these hydroids a threat, if so how to get rid of them?

mylifeismyown66 · 01/17/2011, 09:38 AM

I have these little things all over my rock, some growing on corals. They really dont bug me too much and my corals look okay (I do have a few encrusting montis and favias that havent been doing too well). My tank is a full reef with zoas, different types of LPS, and some different types of SPS. This hydroid isnt like those huge brown ugly ones I see, and I dont think I can pour kalk all over every one of them, especially because they grow between zoa polyps and such. Im just wondering if theyre a threat like the other big hydroids and if I can add something to my 39g full reef that would eat them be it a predator (maybe peppermint shrimp) or something like a medication (like a flatworm exit). Thanks!
They look like this pic:
http://www.coralpedia.com/index.php?...g2_itemId=6196

mylifeismyown66 · 01/17/2011, 07:26 PM

No one? I bought 2 peppermint shrimp today because well, its just 2 peppermint shrimp and its worth a shot with them I guess

goochesfish · 01/18/2011, 12:07 AM

I have them growing between zoa polyps too and I find the polyps turn away from them. Unfortunately, I don't know what to do with them either.

polywise · 01/18/2011, 05:16 AM

I might be wrong, but don't Mandarins eat them as part of their diet?

sland · 01/18/2011, 08:42 AM

Hydroids are a huge pain. Each species has its own set of predators it seems. Surprisingly, I had an outbreak about a year ago and used copious amounts of Aiptasia X, and it destroyed them, and all of my corals were fine, kind of surprised me that it worked.

noahm · 01/18/2011, 08:47 AM

I had that kind for a while, then gone for no reason. Same with the digitates. I haven't had the polyp-looking brown ones, but they seem to be the main pita. Try cutting back on food for a few weeks.

01/17/2011, 09:38 AM	#1
mylifeismyown66 FUP&A Member Join Date: Oct 2009 Location: East Hampton, CT Posts: 2,172	Are these hydroids a threat, if so how to get rid of them? I have these little things all over my rock, some growing on corals. They really dont bug me too much and my corals look okay (I do have a few encrusting montis and favias that havent been doing too well). My tank is a full reef with zoas, different types of LPS, and some different types of SPS. This hydroid isnt like those huge brown ugly ones I see, and I dont think I can pour kalk all over every one of them, especially because they grow between zoa polyps and such. Im just wondering if theyre a threat like the other big hydroids and if I can add something to my 39g full reef that would eat them be it a predator (maybe peppermint shrimp) or something like a medication (like a flatworm exit). Thanks! They look like this pic: http://www.coralpedia.com/index.php?...g2_itemId=6196 __________________ Ryan Current Tank Info: CAD Lights 18g Nano mixed reef, AI Prime LED, APEX Controller, Avast ATO, Vortech MP10wes,

01/17/2011, 07:26 PM	#2
mylifeismyown66 FUP&A Member Join Date: Oct 2009 Location: East Hampton, CT Posts: 2,172	No one? I bought 2 peppermint shrimp today because well, its just 2 peppermint shrimp and its worth a shot with them I guess __________________ Ryan Current Tank Info: CAD Lights 18g Nano mixed reef, AI Prime LED, APEX Controller, Avast ATO, Vortech MP10wes,

01/18/2011, 12:07 AM	#3
goochesfish Registered Member Join Date: Feb 2008 Location: Los Angeles Posts: 1,305	I have them growing between zoa polyps too and I find the polyps turn away from them. Unfortunately, I don't know what to do with them either. __________________ The Gooch, my Beagle, may she RIP 1995-2011 Current Tank Info: 150 gallon Starfire set up July 22,09, 30g QT

01/18/2011, 05:16 AM	#4
polywise OLD SCHOOL-ish Join Date: Feb 2003 Location: Somers, NY Posts: 889	I might be wrong, but don't Mandarins eat them as part of their diet? __________________ Jim C.

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01/18/2011, 08:42 AM	#5
sland Registered Member Join Date: Dec 2010 Location: Fort Riley, KS Posts: 186	Hydroids are a huge pain. Each species has its own set of predators it seems. Surprisingly, I had an outbreak about a year ago and used copious amounts of Aiptasia X, and it destroyed them, and all of my corals were fine, kind of surprised me that it worked.

01/18/2011, 08:47 AM	#6
noahm Registered Member Join Date: Oct 2008 Location: Huntsville, AL Posts: 2,736	I had that kind for a while, then gone for no reason. Same with the digitates. I haven't had the polyp-looking brown ones, but they seem to be the main pita. Try cutting back on food for a few weeks.