Found a Digitate Hydroid growing ON A ZOA POLYP

[mrvincent]

Hi, I just found a digitate hydroid (white string), clearly a digitate hydroid growing ON a zoa polyp... It was on the external 'skin' of the polyp... That was the only polyp to be always closed on the frag...

So I just used tweezers to remove it... trying not to damage the single polyp... But I find it really strange to find it growing ON the polyp...

Usually they grow on rocks... That's the only one I found...

Anybody dealed with that ? I all brushed my zoa frag with a teethbrush, and I'm now dipping in 'Reef Dip' from Seachem double dose for triple time... Is it OK ?