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  #1  
Old 07/27/2007, 09:02 AM
Szwalla Szwalla is offline
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Hydroids

I think I have some brown ones and I want to destroy them ASAP. I am not 100% sure but close. I know that I did not pay for them.

I have read to take some kalkwasser and mix it with water to create a paste. Then find a syringe to squeeze it through and onto the unknowing victims. Also, to use caution not to hurt anything else.

Does this sound about right?
  #2  
Old 07/27/2007, 09:48 AM
Szwalla Szwalla is offline
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Has anyone else ever had one/some?
  #3  
Old 07/27/2007, 10:15 AM
Szwalla Szwalla is offline
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I was able to pull one rock out. I saw the little patch of them (nickel in total size). Being the fool I am, I had to touch. If I were an animal, I would be a dog. Not just any dog but my dog. She puts anything in her mouth. Back to my findings....They were stiff to the touch. Did not sting me. I did not want to scrape them with the fear of them spreading. I covered them with my paste. Now I have a white area...
I then tested the syringe in a bucket of water to see which way the paste would come out and how fast. I pasted the only other two spots I could see.
My next step is to cut back on the nutrients.
  #4  
Old 07/27/2007, 10:36 AM
KurtsReef KurtsReef is offline
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If your speaking of aptasia or majone (Spelling) anemone's then yes this is the best way. Leave the home made 'joes juice' on them and let it dissipate on its own, pulling them or any other act that tears them apart will only lead too more in your tank.
  #5  
Old 07/27/2007, 10:59 AM
nwrogers nwrogers is offline
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Are you talking about these?

http://scilib.ucsd.edu/sio/nsf/fguide/cnidaria24.html
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  #6  
Old 07/27/2007, 11:04 AM
Szwalla Szwalla is offline
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No, they looked like mini feather dusters.
  #7  
Old 07/27/2007, 11:40 AM
KurtsReef KurtsReef is offline
Wish coral grew faster
 
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Got any photos?
  #8  
Old 07/27/2007, 11:48 AM
tmz tmz is offline
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If they are small tube worms(look like feather duster and go in and out of their tubes),they are pretty harmless filter feeders who will wane somewhat with less nutrients. They can irritate some corals to remain closed just by their movement if they are present in large numbers. When they have infested a coral in my reef , I found removal with a pair of tweezers to work fine.
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  #9  
Old 07/27/2007, 01:05 PM
Szwalla Szwalla is offline
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Sorry, I don't have any photos. Too late. All you can see right now is a couple white spots.
  #10  
Old 07/27/2007, 01:36 PM
suppressivefire suppressivefire is offline
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there harmless imo
  #11  
Old 07/27/2007, 09:20 PM
thriceanangel thriceanangel is offline
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The link that was posted is unlike most hydroids I have seen. I think that those must've been more mature, I have only seen a few polyps at a time.. And they aren't really harmless as they can sting corals, unlike serpulids.
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  #12  
Old 07/27/2007, 11:51 PM
suppressivefire suppressivefire is offline
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mine are fine
  #13  
Old 07/28/2007, 07:33 AM
SteveL SteveL is offline
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Szwalla:

They do sound like a problematic hydroid that several people have but usually people don't know what they are. Good description is that they look like a tiny brown version of a yellow polyp.

Yes they can become a real problem and yes some do have an irritating sting - not to the palm side of your hand where the skin is tougher - try running the back of your hand over these guys and you'll know about it. That said I have encountered some of these that don't seem to sting.

You can try the kalk paste but I generally search for these and scrub with an old toothbrush while siphoning during a water change.

SteveL
  #14  
Old 07/29/2007, 01:20 AM
S Helinski S Helinski is offline
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Place a head or colony of a euphillia coral; torch, frogspawn, hammer, etc. right on the hydroids. Have the tentacles smother the hydroids, and they will die in hours. I'll usually leave the head or colony on them for a day or so just to be sure, but this will nuke them. I haven't seen any damage done to the coral either...

Steve
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  #15  
Old 07/29/2007, 09:04 AM
jstraka1 jstraka1 is offline
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check this link out, there is a breif write-up on stinging hydroids.
http://reefkeeping.com/issues/2004-1...ture/index.php
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  #16  
Old 07/29/2007, 11:14 AM
tmz tmz is offline
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I've had some sucess with expoxy putty kneaded into a thin sheet and placed over them. You may be able to peel it back off after a couple of weeks or you can leave it and let coraline cover it over the course of a month or two. This technique is most useful when they are very close to the tissue of a healthy coral and there just doesn't seem to be a way to get at them. If you can get the rock out of the display you can always grind them off with a dremmel or similar device and take about an eighth or sixteenth of an inch of rock with them. This is a messy but effective process.
Tom
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  #17  
Old 07/29/2007, 11:57 AM
ming81 ming81 is offline
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At first they looked cool, but then again, so did an aiptasia. They can eventually become a nuisance as they reproduce into large colonies and spread.
pic of hydroid colony from the reefkeeping link
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  #18  
Old 07/29/2007, 07:03 PM
tyson tyson is offline
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FWIW, i added pep shrimp to take care of aptaisia and all my hydroids disappeared with the aptaisia.
  #19  
Old 07/29/2007, 09:22 PM
Szwalla Szwalla is offline
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What does FWIW mean? I have an idea but not 100% sure.

Thanks
  #20  
Old 07/29/2007, 09:37 PM
PCIALF PCIALF is offline
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Quote:
Originally posted by Szwalla
What does FWIW mean? I have an idea but not 100% sure.

Thanks
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