[I found a zoo eating nudi in my tank today on a frag of green zoos I got from Marc at the prop. workshop. I am not saying it came on Marc's zoo just that is where I saw it today. So my question is, if I have found one are there many more there in my tank? This was found in my nano cube 12 gal. I hope this is the only one. It was a rather neat looking nudi. Black with red spikes resembling one in shape to a pic of one that saw recently on the board that someone else found in their tank. How do these nudis eat the zoos? Do they get inside of them and eat there way out? Are they asexual able to produce from one nudi? The zoos look alright a few polyps are a little retracted in but I think that is just from me messing with them.]