reefmaint - Maybe so, but these guys can actually last a pretty long time without any aiptasia. Also, colony size will inrcease given there is enough aiptaisa. As the aiptasia dwindles so will the size of the nudi colonies. If the aiptasia starts to spread again, these small colonies will also start to increase again. Also, I don't mind having a few small aiptasia in remote areas as long as it doesn't get out of hand. But you'd be suprised how effecient these nudis can be. It's pretty amazing that given their size they can be so productive. I guess I'll just wait and see what happens. It seems that you may have some knowledge on this subject. What experiences have you had with them? Please share, thats why I started this thread.