SL have it
or you can try topic marine lugol's solution it almost the same as kent marine
but i never try topic marine b4.
think you better take that zoos rock out. and place it else where. either dip in fresh water or very high saltinty water or in lugol solution.
while you are dipping shake the rock soon you can see the nudi droping off.....
as for the remaining nudi you can't do much to it.
either you siphon them out when u see them or u dip every zoos rocks u have in your tank. If you have a zoos tank like DA good luck....