ID Help Please!

[jeffrey_ropp]

Anyone know what these are? Notice there is some sort of sac below the polyps. Anyone know? Since they're ugly, I'd like to get rid of them.

Thanks,
Jeff

<img src=http://www.zoyzoy.com/aquarium/reefcentral/identify1.jpg>

 

[ezcompany]

still looks like some kind of feather duster to me

 

[Hunter_Cal]

no idea, but if you dont like it get rid of it, better to be safe than sorry

 

[spline9]

I'm thinkin hydroids (i may be wrong, though), a sponge (the "sack") and a peanut worm.

 

[So Cal shaggy]

the tubes with heads are hydroids (they can be a problem) the sack under them is a sponge (harmless)

 

[NicoleC]

Ditto. Kalk the hydroids, ignore the sponge and encourage the peanut worm.

 

[jeffrey_ropp]

Thanks everyone.

Nicole...does that mean shoot them with a kalk soution via a syringe? Sorry for the stupid question, I don't only any kalk solution.

 

[Sk8r]

They look like dusters to me: there's a sort that makes little clusters.

 

[sps_addict]

Yup, i would do the same as Nicole. Create a kalk paste, turn off pumps and cover the hydroids using a syringe, pipette, or turkey baster.

 

[NicoleC]

Take some kalk powder and add a little Ro water -- just enough to make a paste watery enough you can suck it up in a syringe.

Turn off all the pumps and wait for water to settle. Using the syringe, gently blanket the hydroids in kalk. Wait a few minutes -- maybe 10-15. Turn pumps back on.

You don't want to use so much that a lot goes flying around the tank when the pumps come back on. Once it is dissolved in water, it's safe, but the powder is very caustic and can burn fishes and corals. You don't need to total cover them. If you want to get crazy and have a lot of time on your hans -- or have a lot you want to treat all at once -- use a syringe with a fine needle and just drop a little in the individual tubes.


In a small tank, you may want to only use a little kalk and do several treatments, so that the kalk doesn't cause a pH or Alk spike.