Help 'covering' Colonial Hydra

[LisaJulia65]

Greetings! I live on Cape and have 2 tanks: 29g and 72g. The rock in both tanks is over 20 years old and it has become covered in colonial hydras. Setting fire to the rocks is not a practical option for me but the hydra are suffocating and/or stinging zoas and other softies so i keep moving them around in the 29. I have no coral in the 72g and want to know if pulsing xenia would cover and overtake the rocks with the hydra. I KNOW xenia are a 'hated weed' but they are WAY cooler than rocks with hydra!!! I tried GSP and the hydra won out. I was going to just plant a ton of macro algae but can't seem to find any evidence that they can outcompete the hydra, and i've never tried xenia.
Has anyone with hyrda successfully found something to cover/hide them? Again, not in a position to break down my old tanks and start over.
Thank you in advance!
Lisa

 

[Cpage101]

Greetings! I live on Cape and have 2 tanks: 29g and 72g. The rock in both tanks is over 20 years old and it has become covered in colonial hydras. Setting fire to the rocks is not a practical option for me but the hydra are suffocating and/or stinging zoas and other softies so i keep moving them around in the 29. I have no coral in the 72g and want to know if pulsing xenia would cover and overtake the rocks with the hydra. I KNOW xenia are a 'hated weed' but they are WAY cooler than rocks with hydra!!! I tried GSP and the hydra won out. I was going to just plant a ton of macro algae but can't seem to find any evidence that they can outcompete the hydra, and i've never tried xenia.
Has anyone with hyrda successfully found something to cover/hide them? Again, not in a position to break down my old tanks and start over.
Thank you in advance!
Lisa

I’m not sure of the magnitude of your colonial hydroids but you could try putting F aptasia on them it may kill them off. i use it for killing pest palys so why not try on hydroids. otherwise removing rock and scrubbing them off and/or treat with peroxide I have read. I have not personally encountered these myself.

 

[LisaJulia65]

Thank you so much. I have seen these remedies before and I did take a few of the rocks out and use the hydrogen peroxide but it really didn't do anything. I also have fish and some softies in the tank and I'm very reluctant to add any chemicals that might be disruptive. I really just want to know if there is anything that can out-compete these nasty creatures and I'm hoping pulsing Xenia would would do it. I really appreciate you responding! In the end I might have to take everything out but I really really really don't want to do that.

 

[BiGGiePauls33]

F Aptasia works great, just do a a little at a time and you should be fine versus half a bottle like I did. Skimmer went nuts for over a week.

Video of the creator Frank Gardner and Mr. Saltwatertank.

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[Moose10]

Manta has an article on it:

Manta Systems

Expert saltwater aquarium tips, coral care guides, and fish health advice. Learn feeding, maintenance, and reef-keeping techniques to keep your tank thriving.

www.mantasystems.net

 

[Cpage101]

F Aptasia works great, just do a a little at a time and you should be fine versus half a bottle like I did. Skimmer went nuts for over a week.

Video of the creator Frank Gardner and Mr. Saltwatertank.

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For more detailed information, see our cookies page.

Accept third party cookies

also all goes up a bit too

 

[LisaJulia65]

Maybe I can take out one rock at a time and little by little get to all of them. It's just mind-blowing how fast those demons spread. I worry that even one is just going to multiply somehow. Makes you want to start from scratch but after 20 plus years I just really don't want to do that but maybe!

 

[LisaJulia65]

Also thank you for the video. It's helpful but I don't have aptasia at all and he doesn't mention Hydra. I'm going to do a little bit more research.

 

[Cpage101]

Maybe I can take out one rock at a time and little by little get to all of them. It's just mind-blowing how fast those demons spread. I worry that even one is just going to multiply somehow. Makes you want to start from scratch but after 20 plus years I just really don't want to do that but maybe!

you can use f aptasia while leaving rock in the tank