Are these invasive? What are these?

[Delatedlotus]

I thought they where kind of cool at first.. Then they just started to explode all over the place.. Someone said that a kalk paste mixture would kill them off? That might be another thing to try as well. Horror story after horror story about people tearing down there tanks because of these, scares the doo out of me..! They will be hard to get to but I will prevail I pray... grrrrrrrrrrrrrr Thank you all... BUT if anyone can ID these for sure, and if anyone else knows what I can do to eradicate these please share as I am sure there are others with these as well... I do not want to loose my tanks..

 

[Reefkeepers Archive]

I thought they where kind of cool at first.. Then they just started to explode all over the place.. Someone said that a kalk paste mixture would kill them off? That might be another thing to try as well. Horror story after horror story about people tearing down there tanks because of these, scares the doo out of me..! They will be hard to get to but I will prevail I pray... grrrrrrrrrrrrrr Thank you all... BUT if anyone can ID these for sure, and if anyone else knows what I can do to eradicate these please share as I am sure there are others with these as well... I do not want to loose my tanks..

Also curious to know how to safely get rid of these, there has been a very small patch of colonial hydroids at the base of my leather, hasn't grown at all and it's been a few months but better be safe than sorry...

 

[EeyoreIsMySpiritAnimal]

Also curious to know how to safely get rid of these, there has been a very small patch of colonial hydroids at the base of my leather, hasn't grown at all and it's been a few months but better be safe than sorry...

Post in thread 'Are these invasive? What are these?' https://www.reef2reef.com/threads/are-these-invasive-what-are-these.1030817/post-12127218

 

[Reefkeepers Archive]

Post in thread 'Are these invasive? What are these?' https://www.reef2reef.com/threads/are-these-invasive-what-are-these.1030817/post-12127218

And if the rock is cemented to the entire aquascape?

 

[EeyoreIsMySpiritAnimal]

And if the rock is cemented to the entire aquascape?

Pray?

 

[EeyoreIsMySpiritAnimal]

And if the rock is cemented to the entire aquascape?

Like I said, I had to completely break down the tank.

 

[nereefpat]

You might try smothering them with epoxy. I would guess that would kill them.

I have a few patches of them in my tank. They don't spread quickly, at least they haven't in my case. What I hate about them is if I accidentally brush up against them with my hand or arm while doing maintenance, I get nasty itchy spots where they stung me.

 

[MrGisonni]

My first thought was colonial hydroids as well. Get rid of them.

 

[ISpeakForTheSeas]

These are some strategies I've heard:

I've heard smothering the hydroids with kalk paste may work, but here are some other threads with suggestions that might be helpful:

Hydroids: a reference to some strategies

Like many of us, I have had problems on and off over the years with Hydroids. The ones that have always given me the most problems are the common ones that almost look like a smaller and darker version of the beginner coral called Yellow Polyps. But the colonial Hydroid is much smaller than...

www.reef2reef.com

Hydroids - How do I eliminate- They have taken over my tank

So I have this stuff that has pretty much taken over my tank and I can't get rid of it. I'm looking for an ID and an eradication plan that is anything short of a total teardown.

www.reef2reef.com

Fenbendazole dip for blue clove polyp/hydroids.

FYI So I had more than few blue clove and what i believe are hydroids pop up on a few frags and start spreading in the frag system. I didn't want to start out treating the whole system so I picked the most populated frags to treat. I mixed 1/4 gram of Fenbendazole with 1 cup of saltwater as a...

www.reef2reef.com

 

[JonsNano]

I wonder if one of those reefdelete uv c lazer like thingys for aiptasia might work

 

[jerrod]

I have done the Fenbenzadole treatment referenced in this link. I did a half dose same as the original poster and it cleared up all of the small polyps (mine were BCP). I ran ROX 8 and the skimmer wet after 72 hrs then did a 20% water change as the author suggested. I tired everything, only feeding large pellets, lights off, kalk paste, tuxedo urchin, and copperband, trying not to use chemical methods. None of those worked for me. As stated in the article it will kill your turbo snails (if you have any) and there will be a large die off of worms. Nothing else was affected in my tank, corals were fine, fish even copepods. I am not an expert but after almost 9 months of dealing with them I was at my limit and regret not doing this at the beginning.

Fenbendazole – eliminate invasive soft corals (Blue Cloves Polyps, Xenia, Aiptasia, Hydriods, etc.)

For those wanting to eliminate invasive soft corals from their tanks; I can report that I successfully eradicated Blue Clove Polyps and Xenia from my tank. I used the canine de-wormer medication Fe…

maxdraco.wordpress.com

 

[JonsNano]

You might try smothering them with epoxy. I would guess that would kill them.

I have a few patches of them in my tank. They don't spread quickly, at least they haven't in my case. What I hate about them is if I accidentally brush up against them with my hand or arm while doing maintenance, I get nasty itchy spots where they stung me.

I’m the same, in that I have a couple of small patches which haven’t seemingly spread been there for months, I’m lucky though as I dont get stung for some reason and I have struggled removing the tubes bare hand a couple of times.
I do have quite a few digitate hydroids showing up over the last month now so I’m getting a bit worried lol
Does anyone know if they (colonial hydroids) create a root like structure in the rock?

 

[JonsNano]

I have done the Fenbenzadole treatment referenced in this link. I did a half dose same as the original poster and it cleared up all of the small polyps (mine were BCP). I ran ROX 8 and the skimmer wet after 72 hrs then did a 20% water change as the author suggested. I tired everything, only feeding large pellets, lights off, kalk paste, tuxedo urchin, and copperband, trying not to use chemical methods. None of those worked for me. As stated in the article it will kill your turbo snails (if you have any) and there will be a large die off of worms. Nothing else was affected in my tank, corals were fine, fish even copepods. I am not an expert but after almost 9 months of dealing with them I was at my limit and regret not doing this at the beginning.

Fenbendazole – eliminate invasive soft corals (Blue Cloves Polyps, Xenia, Aiptasia, Hydriods, etc.)

For those wanting to eliminate invasive soft corals from their tanks; I can report that I successfully eradicated Blue Clove Polyps and Xenia from my tank. I used the canine de-wormer medication Fe…

maxdraco.wordpress.com

What corals were you keeping at the time of treatment? Just for reference

 

[jerrod]

What corals were you keeping at the time of treatment? Just for reference

280 gal 100 sump Mixed Reef. SPS, Euphylia and a large BTA.

 

[ISpeakForTheSeas]

Does anyone know if they (colonial hydroids) create a root like structure in the rock?

At least some have stolons that run along the surface of the rock, so it's possible some of it would go into holes in the rock, but I don't know for sure.

It definitely wouldn't be burrowing in/digging in by itself, though, the hole would already need to be there.

 

[JonsNano]

280 gal 100 sump Mixed Reef. SPS, Euphylia and a large BTA.

Fenbendazole for the win then!
I like that you don’t necessarily have to do an in tank treatment if you are able to remove rocks.
Did you have or notice any die off of brittle stars or other starfish?

 

[Reefkeepers Archive]

Out of curiosity, does anyone know if a lemon juice injection (similar to aiptasia treatment) would kill them? Would smothering them in coral glue work as well?

 

[vetteguy53081]

Out of curiosity, does anyone know if a lemon juice injection (similar to aiptasia treatment) would kill them? Would smothering them in coral glue work as well?

Lemon juice, no. Often if you direct water flow towards them and not at them, they will starve and die off as they favor food particles and brine shrimp. I don't recommend fenbendazole in the tank Unless Absolutely necessary as it will each in rocks and sand and likely to kill off some coral some inverts and likely copepods and worms in the tank.

 

[Reefkeepers Archive]

Lemon juice, no. Often if you direct water flow towards them and not at them, they will starve and die off as they favor food particles and brine shrimp. I don't recommend fenbendazole in the tank Unless Absolutely necessary as it will each in rocks and sand and likely to kill off some coral some inverts and likely copepods and worms in the tank.

You know, I feed this tank heavily (it's coral only for now, but I'll often drop in 2 cubes of coral food and daily and 120 ml of phyto every other day) but it's been two months and I haven't seen any noticeable growth on them. I know for a fact that sea spiders will eat them but I don't want to risk adding any more than what's already (unfortunately) in there.. someone recommended kalk paste but I'm concerned that will fall on my favia colony below...

 

[vetteguy53081]

And Kalk may alter your calcium and Ph if not regulated but Kalk paste is effective with many pest growths