Hydroids?

[jonesdeini]

from what I gathered from other posts around it here it seems like these are hydroids, but I couldn't find much more information other than the fleshy white type of hydroids seem to go away on their own. If anyone knows the proper name or has more information I'd really appreciate it.

I'm not sure how well the video will upload here(it wasn't the greatest video to begin with), so here is the video shared in google photos: https://photos.app.goo.gl/PoNEutK169YACfRLA

 

[GillMeister]

I just get audio when I try to watch the video.

 

[jonesdeini]

I just get audio when I try to watch the video.

The google photos link works but I only get audio as well for the upload here .

Here are some pictures:

 

[GillMeister]

Much better pics! Those are not digitate hydroids and they don't look like colonial hydroids. Let's hope someone here can ID these critters.

 

[ReefSlice]

Yup hydroids. This particular type grew like crazy in one of my tanks, I had to go through 2 cycles of fenbendazole to kill them all off. If you go this route, be careful to research because it kills a few corals. I lost a toadstool leather.

Here it is! Fenbendazole use against hydroids

Hi all! Well after getting a lot of questions about the use of fenbendazol I figured I would write this up. This is for informational purposes and I will not be held liable for improper use. Fenbendazol must be used exactly as I instruct or run the risk of a tank crash. Now lets get to it! So...

www.reef2reef.com

 

[damsels are not mean]

Yup hydroids. This particular type grew like crazy in one of my tanks, I had to go through 2 cycles of fenbendazole to kill them all off. If you go this route, be careful to research because it kills a few corals. I lost a toadstool leather.

Here it is! Fenbendazole use against hydroids

Hi all! Well after getting a lot of questions about the use of fenbendazol I figured I would write this up. This is for informational purposes and I will not be held liable for improper use. Fenbendazol must be used exactly as I instruct or run the risk of a tank crash. Now lets get to it! So...

www.reef2reef.com

That's shocking honestly I have some growing in the branches of a leather which is completely healthy and some zoas slowly growing over another patch of them. Did you lose the leather before or after dosing?

In fact I'm reading through this page and it seems lots of people are concluding the medication doesn't really work and it's killing their coral and snails.

Hydroids are filter feeders, they can't survive if you don't overfeed. That's how you control them. Since they don't do any damage in my tank I don't care.

 

[damsels are not mean]

from what I gathered from other posts around it here it seems like these are hydroids, but I couldn't find much more information other than the fleshy white type of hydroids seem to go away on their own. If anyone knows the proper name or has more information I'd really appreciate it.

I'm not sure how well the video will upload here(it wasn't the greatest video to begin with), so here is the video shared in google photos: https://photos.app.goo.gl/PoNEutK169YACfRLA

If you want em out use a toothbrush or just glue a rock over them.

 

[ReefSlice]

That's shocking honestly I have some growing in the branches of a leather which is completely healthy and some zoas slowly growing over another patch of them. Did you lose the leather before or after dosing?

In fact I'm reading through this page and it seems lots of people are concluding the medication doesn't really work and it's killing their coral and snails.

Hydroids are filter feeders, they can't survive if you don't overfeed. That's how you control them. Since they don't do any damage in my tank I don't care.

They exploded in my tank with low nutrients and only 2 fish, I'd say it's just different for every tank, and this particular species spread extremely fast, while other hydroids I had for years never spread at all. They were stinging corals and causing them to close up. The medication worked great for me.

 

[damsels are not mean]

They exploded in my tank with low nutrients and only 2 fish, I'd say it's just different for every tank, and this particular species spread extremely fast, while other hydroids I had for years never spread at all. They were stinging corals and causing them to close up. The medication worked great for me.

Good to hear that method worked for you. I think OP can still just smother these as they are a small patch that seems easy to reach.

 

[jonesdeini]

Good to hear that method worked for you. I think OP can still just smother these as they are a small patch that seems easy to reach.

I have more than just that patch, they are on almost every rock. I am curious how I ended up with them since I remove every frag from the plug it comes on and glue to a fresh piece of rubble(I also dip but I'm sure this is the type of hitchhiker that can survive dip). I also started with dry rock. I'm not against taking the rocks out and hitting them with a toothbrush but I'd like to know more about what these are and how I got them with my current method of introducing frags into my system. When I Google "hydroids" I don't get great results

 

[damsels are not mean]

I have more than just that patch, they are on almost every rock. I am curious how I ended up with them since I remove every frag from the plug it comes on and glue to a fresh piece of rubble(I also dip but I'm sure this is the type of hitchhiker that can survive dip). I also started with dry rock. I'm not against taking the rocks out and hitting them with a toothbrush but I'd like to know more about what these are and how I got them with my current method of introducing frags into my system. When I Google "hydroids" I don't get great results

I think many have a free swimming stage that would allow them to come in water from a bag. They could also have been microscopic on the tiniest piece of frag plug left over.

 

[jonesdeini]

circling back incase others find this post by searching; they seem to have largely just gone away. The only thing I've done differently is less phytoplankton because I ran out. Still feeding reef roids, goniopower, and the small particles that come with thawing PE Mysis 1-2x week. 1 This is the same rock from the above pictures

 

[damsels are not mean]

Yeah sometimes they just disappear. The conventional wisdom on them is usually that they are a "new tan" thing when you use live rock. Although my experience is the opposite, maybe they were only eating phyto.

 

[indigoze]

I have spotted some of these as well. Are they going to cause me more problems than I already have with aiptasia?

 

[Dr_Orpheus]

If you haven't tried anything to get rid of any of those, particularly those second guys I think, you could try a peppermint shrimp. My L. Wurdmanni eats a lot of types it seems like.

Edit: the Wurdmannis have always been reef safe for me. No guarantees but still. I've used them a lot for aiptasia in mixed reef systems.

 

[indigoze]

Most of them seem to have died off without me doing anything. There are still a few in certain areas but they don't seem to be spreading.

 

[Dr_Orpheus]

Most of them seem to have died off without me doing anything. There are still a few in certain areas but they don't seem to be spreading.

The perfect kind of hydroid haha. With a bit of luck they'll populate a bunch somewhere in your filtration and act as an extra filtration source while never bothering you again. They can do a lot to clean up a tank!