[DJ88]

Sam,

The nudibranch you are talking about is a sea slug not a nudi. FYI. As well unless you have a large number of them in your tank they won't be able to keep up. I tried with two in my tank.

Even buying the smallest one doesn't guarantee a longer life span. They are a very deilcate creature and don't have a long life span. I had two in my tank that I acclimated for four hours. One disappeared after a few days. The second grew to three times it's original size and disappeared after a couple of weeks. Leaving enough bryopsis to grow back.

I have lowered the temp in my tank to about 78 in the middle of the day and kept it there to slow the growth. Then every two days I go in there and pull it out with my fingers and forceps. Regular water chages and a reduced photoperiod has also slowed it enough so I am winning slowly.