Exactly!!not something you want when you have as many zoos as I do.I just dipped over have of the main tank of zoos and found nothing,but I will be dipping untill every colony and frag is dipped(100+ peices
)
I haven't noticed any changes in the health of the zoos to indicate the nudis are killing them.Maybe I'll get lucky and they were only on the one coloney(which was new arrival).
By the way,the fresh water dip works,the nudi drops off in seconds once esposed to fresh water(give it a real good swish around to loosen them off)I haven't found any egg sacks yet(tiny white eggs formed in a small circle)had to use a large magnifying glass to see them.