I am now a believer. I ordered 3 bergia nudibranchs in Oct. They basically disappeared, with no signs of life while the aiptasia multiplied. My tank was overrun with aiptasia, numbering in the several dozens. The anemone were at least 1" tall. About Ch...
The berghia rrived wonderful. All three were fine and I was able to hand feed them one small aiptasia each during acclamation. I got to see first hand how they chow down on them. Wonderful stuff.