Need help with hydroids

[hardcorn77]

So I’ve been battling hydroids in my little 30 gallon for a few months now. I thought I fixed the issue around a month ago when I pulled all the rock and scrubbed it pretty good but I guess a few made it back into the tank. These are the little green jerks that kinda look like feather dusters. I’m thinking about pulling all my rock out again and letting it dry out or soaking it in freshwater to kill them. Will this work or does anyone else have a trick for these guys? Also on a side note does anyone think that my biological on the glass, sand and sump “ empty” will sustain my live stock during this process or should I set up some media in my sump before pulling all the rock. Tanks been running with live stock for almost a year now. Thanks in advance for any help.

 

[Tahoe61]

Can you post an image? Is there a lot of food particals in the water column from feeding?
In a 30 gallon you could conceivable cycle some new rock for a month or so and switch it out. Then put the old rock in a container with a hydrogen peroxide dilution and let it sit for a day, rinse and recycle the old rock.
I once removed all the rock from an established 29 gallon to treat for Majano and my corals responded negatively.

 

[hardcorn77]

Can you post an image? Is there a lot of food particals in the water column from feeding?
In a 30 gallon you could conceivable cycle some new rock for a month or so and switch it out. Then put the old rock in a container with a hydrogen peroxide dilution and let it sit for a day, rinse and recycle the old rock.
I once removed all the rock from an established 29 gallon to treat for Majano and my corals responded negatively.

No my water column is really clean and I feed a little on the light side. It seems every time these guys pop up my nutrients start to bottom out. I might try that with some new rock but I’ve also read that these guys can spawn in my plumbing too. Thanks a million for the advice I appreciate it.

 

[Fish Fan]

As a last resort, if you decide you want to go full nuclear on your rocks, consider bleaching them. Bleach will remove all life from the rocks, including both beneficial organisms as well as your hydroids. I'm not saying you should do this, but if you decide you've had it and just want to completely restart the tank, bleach is a good way to do it.

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