Id my pic please

[donald]

I found two clusters of these things and was wondering if i should start a killing spree? Thanks for the info.

 

[cranberry]

Colonial hydroids. They sting. Most people like to remove them.

 

[spanko]

+1 I have found boiling water will nuke them.

 

[donald]

Thanks, I touched them with my finger and they didnt hurt me, I guess they only hurt aquatic animals. I guess I should use boiling rodi water?

 

[alix2.0]

actually, boiling rodi water can be dangerous. i read that it has no impurities/oxygen, so it doesnt actually "boil", it just gets really hot, to a boiling temperature. then, as soon as something enters it (sugar, spoon, syringe (for your aplication)) it boils spontaneously and can burn you.
not that ive ever tested this, its just what ive read. so for your safety, i would recommend using tap water (a small amount wont hurt anything) or RO.

 

[donald]

You are very correct, Pure rodi will instantly erupt when an impurity is introduced. I was going to add a pinch of salt mix to the water. That should keep things safe. Thanks for the heads up, its nice to know people care.

 

[loopy101]

interesting i wasnt aware of that! thanks for the info on RO water! good stuff to know