White fuzzy thing on live rock?

[Kevinkmk]

Hi,

I got this white fuzzy thing growing on my live rock. It seems to grow under shade. Not sure what is it. Thank you!

 

[reef lover]

Sponge harmless

 

[Kevinkmk]

Sponge harmless

I don’t think they are sponge. Maybe it’s the bad picture that I use online. Please see the new one I just took.

 

[KJ]

Branching hydroids.

 

[Kevinkmk]

Branching hydroids.

Oh man. How can I remove them or control them? It seems to be spread since I fallow my tank and dosing coral food everyday

 

[KJ]

Stop dosing coral food and keep you nutrients under control.

 

[reef lover]

Yup I see them now. Kj s got you.

 

[Kevinkmk]

Can I use toothbrush to remove them? Since my fish is gone, I need to find a way to keep my nutrients. The coral are thriving. Any suggestions beside stop feeding coral food?

 

[fragit]

There is a thread about using Fenbendazole to treat hydroids. Don't do anything drastic with out proper research. Some hydroids are essentially self limiting others can be a pest. Not sure about he type you have but perhaps @Lionfish Lair can help with an ID.

 

[fragit]

Here is a photo I found by googling colonial hydroids.

 

[KJ]

Here is a photo I found by googling colonial hydroids.

Branching hydroids.
Colonial hydroids.

 

[Kevinkmk]

Branching hydroids.
Colonial hydroids.

KJ, is there a way to remove them? I saw people online saying take the rock out and burn them with fire and use epoxy to cover them as well

 

[KJ]

KJ, is there a way to remove them? I saw people online saying take the rock out and burn them with fire and use epoxy to cover them as well

If its possible , take these rocks out and soak in peroxide solution for a little bit. Scrub really good with a clean brush and rinse RO /DI , and put it back in your tank.

 

[Kevinkmk]

If its possible , take these rocks out and soak in peroxide solution for a little bit. Scrub really good with a clean brush and rinse RO /DI , and put it back in your tank.

Thanks. Seems like I have a lot of work to do today.

 

[KJ]

Thanks.

YW