What to do about hydroids?

[lanman3]

I think my little nuisance growth is hydroids.

But it seems to be spreading - it is on one rock at least, and on this zoa frag.

Any ideas on how to get rid of them?

Thanks,
bob

 

[chrisstie]

Try some manual removal- toothbrush, pick em with your hands.. they will just get worse and spread.

Not sure what else kills em but I'd love to know I have them too!

 

[graveyardworm]

I had the same type not long ago. They spread around and were on alot of surfaces. Then as quickly as they came they went. They didnt seem to bother anything while they were there. I would suggest siphoning them out if removal is necessary. If pieces get broken off and float around they will eventually settle and start a new colony.

 

[lanman3]

Can't be siphoned...

Can't be siphoned...

Unless you mean siphon the pieces out as I break them off. They are firmly planted, and won't siphon. Only way I've been able to get any out is to grab them with tweezers and pull.

bob

 

[graveyardworm]

However you have to do it, just dont leave the floaties in there.

 

[Stanton]

Don't take any chances..Remove the rock and frag the zoa's. I waited to long and they are spreading all over my tank stinging my zoa's. When I do my tank swap.. I'm cooking all my rock to take care of them for good.

I'm sure drummersreef has his pic ready to show you what can happen if you let them spread.