Possible ID - Hydroid?

dileggi · 08/12/2010, 12:25 PM

Hi Everyone,

I had a quick question of which I'm going to attempt to share two pictures. I have these rusty brown orangish looking things growing. I've noticed them in the tank for quite some time now...maybe a year or so. They started off as a small patch that I took for just some hitchiker filter feeder / feather dusters. As of late, they've really spread and seem to spread quickly. I'm not quite sure if it's a form of hydroid...haven't noticed any stinging when I'm in the tank.

Anyway, if the pic's work and anyone has any clue as to what this may be, it would be greatly appreciated.

Thanks in advance!
Eric

...I guess the pic's aren't going to work. I will be more than happy to e-mail them if I can't get them uploaded.

con999 · 08/12/2010, 12:26 PM

pics?

dileggi · 08/12/2010, 12:30 PM

Having a small problem with uploading the pics!

dileggi · 08/12/2010, 01:15 PM

Maybe now we have pics?

Sugar Magnolia · 08/12/2010, 01:28 PM

Yes, those are hydroids. And a lot of them

dileggi · 08/12/2010, 01:32 PM

I was kind of hoping for a different answer! LOL!...Any ideas other than a tooth brush or tweezers?

Sugar Magnolia · 08/12/2010, 01:34 PM

Honestly, with that many hydroids, if it were me, I'd just get rid of that rock and replace it with new LR. I've done that before when I had a hydroid infestation in one of my nanos.

I suppose you could just dunk the rock into some boiling RO/DI to kill off the hydroids and then re-cycle the rock.

dileggi · 08/12/2010, 01:39 PM

I guess dumping is an option! I did have a caulastrea under there somewhere.

Any ideas on removing it from the sump return? I won't be able to dump that...LOL!

dileggi · 08/12/2010, 01:44 PM

They're more "whispy" looking than other hydroids I've seen. Any idea what type of hydroid it may be? The closest I've seen color wise were the jellies, but these certainly aren't that.

camp · 08/12/2010, 03:33 PM

I think I have the same kind? Mine dont seem to bother anything or grow to fast, and I have them for a long time. How are they bad?

dileggi · 08/12/2010, 03:50 PM

Mine just recently starting spreading. It started out as a golf ball size clump. That clump has been in the tank for about year or slightly longer. I would say it has spread over the last 5 months or so.

As for being bad, they can strangle out your corals. I believe mine came as hitchikers on my caulastrea. My caulastrea had about 5 or 6 heads on it. Basically, they've overgrown it to where I only have one head left. Almost like they kept it from getting any light. I haven't noticed any stinging...from what I can tell. But, my snails and crabs seem to crawl through it with no adverse effects to them.

I believe I've even noticed my scooter blenny sitting right in the middle of it on the rock and didn't have any problems. That's the only reason why I wasn't totally sure if they were hydroids.

08/12/2010, 12:25 PM	#1
dileggi Premium Member Join Date: Sep 2007 Location: S. Philly PA Posts: 1,171	Possible ID - Hydroid? Hi Everyone, I had a quick question of which I'm going to attempt to share two pictures. I have these rusty brown orangish looking things growing. I've noticed them in the tank for quite some time now...maybe a year or so. They started off as a small patch that I took for just some hitchiker filter feeder / feather dusters. As of late, they've really spread and seem to spread quickly. I'm not quite sure if it's a form of hydroid...haven't noticed any stinging when I'm in the tank. Anyway, if the pic's work and anyone has any clue as to what this may be, it would be greatly appreciated. Thanks in advance! Eric ...I guess the pic's aren't going to work. I will be more than happy to e-mail them if I can't get them uploaded. Last edited by dileggi; 08/12/2010 at 12:28 PM. Reason: Pic's not attached

08/12/2010, 12:30 PM	#3
dileggi Premium Member Join Date: Sep 2007 Location: S. Philly PA Posts: 1,171	Having a small problem with uploading the pics! __________________ Eric "The greatest trick the Devil ever pulled, was convincing the world he didn't exist." - Usual Suspects Current Tank Info: 90g w/30g sump; skimmer; 2x175w MH & 2x super white actinic...3g w/.5g fuge 1x150w MH Viper

08/12/2010, 01:28 PM	#5
Sugar Magnolia Registered Member Join Date: Feb 2003 Location: Northern VA Posts: 17,691	Yes, those are hydroids. And a lot of them __________________ Adrienne The only thing to fear is fear itself....and spiders.

08/12/2010, 01:32 PM	#6
dileggi Premium Member Join Date: Sep 2007 Location: S. Philly PA Posts: 1,171	I was kind of hoping for a different answer! LOL!...Any ideas other than a tooth brush or tweezers? __________________ Eric "The greatest trick the Devil ever pulled, was convincing the world he didn't exist." - Usual Suspects Current Tank Info: 90g w/30g sump; skimmer; 2x175w MH & 2x super white actinic...3g w/.5g fuge 1x150w MH Viper

08/12/2010, 01:34 PM	#7
Sugar Magnolia Registered Member Join Date: Feb 2003 Location: Northern VA Posts: 17,691	Honestly, with that many hydroids, if it were me, I'd just get rid of that rock and replace it with new LR. I've done that before when I had a hydroid infestation in one of my nanos. I suppose you could just dunk the rock into some boiling RO/DI to kill off the hydroids and then re-cycle the rock. __________________ Adrienne The only thing to fear is fear itself....and spiders.

08/12/2010, 12:26 PM	#2
con999 Registered Member Join Date: Jul 2010 Location: cary il Posts: 430	pics?

08/12/2010, 01:15 PM	#4
dileggi Premium Member Join Date: Sep 2007 Location: S. Philly PA Posts: 1,171	Maybe now we have pics?

08/12/2010, 01:39 PM	#8
dileggi Premium Member Join Date: Sep 2007 Location: S. Philly PA Posts: 1,171	I guess dumping is an option! I did have a caulastrea under there somewhere. Any ideas on removing it from the sump return? I won't be able to dump that...LOL! __________________ Eric "The greatest trick the Devil ever pulled, was convincing the world he didn't exist." - Usual Suspects Current Tank Info: 90g w/30g sump; skimmer; 2x175w MH & 2x super white actinic...3g w/.5g fuge 1x150w MH Viper

08/12/2010, 01:44 PM	#9
dileggi Premium Member Join Date: Sep 2007 Location: S. Philly PA Posts: 1,171	They're more "whispy" looking than other hydroids I've seen. Any idea what type of hydroid it may be? The closest I've seen color wise were the jellies, but these certainly aren't that. __________________ Eric "The greatest trick the Devil ever pulled, was convincing the world he didn't exist." - Usual Suspects Current Tank Info: 90g w/30g sump; skimmer; 2x175w MH & 2x super white actinic...3g w/.5g fuge 1x150w MH Viper

08/12/2010, 03:33 PM	#10
camp Registered Member Join Date: Jan 2010 Location: Wapakoneta,OH Posts: 97	I think I have the same kind? Mine dont seem to bother anything or grow to fast, and I have them for a long time. How are they bad?

08/12/2010, 03:50 PM	#11
dileggi Premium Member Join Date: Sep 2007 Location: S. Philly PA Posts: 1,171	Mine just recently starting spreading. It started out as a golf ball size clump. That clump has been in the tank for about year or slightly longer. I would say it has spread over the last 5 months or so. As for being bad, they can strangle out your corals. I believe mine came as hitchikers on my caulastrea. My caulastrea had about 5 or 6 heads on it. Basically, they've overgrown it to where I only have one head left. Almost like they kept it from getting any light. I haven't noticed any stinging...from what I can tell. But, my snails and crabs seem to crawl through it with no adverse effects to them. I believe I've even noticed my scooter blenny sitting right in the middle of it on the rock and didn't have any problems. That's the only reason why I wasn't totally sure if they were hydroids. __________________ Eric "The greatest trick the Devil ever pulled, was convincing the world he didn't exist." - Usual Suspects Current Tank Info: 90g w/30g sump; skimmer; 2x175w MH & 2x super white actinic...3g w/.5g fuge 1x150w MH Viper

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Hydroids or not hydroids?	Runner	East Tennessee Reef Club	17	11/26/2007 03:09 PM
Hydroids! - Please help!	Psychedelic Mandarin	Reef Discussion	46	12/08/2006 10:59 PM
hydroids	Tommy	Reef FAQ's	9	12/03/1999 06:32 PM