I have been looking for awhile in the local shops and haven't found them. You can always order them online from Salty Underground. https://saltyunderground.com/
I was going to post this same question - I was looking at the Salty Underground but was hesitant about shipping costs. I would prefer local if possible.
I'll check that out. I've been using Aiptasia X with limited success - tank looks good for a week but most come back.
I have a useless "Aiptasia Eating" peppermint shimp hiding under a rock. May swing my Club Reef tomorrow and see if they have anything.
If anyone is still looking for these, they are on sale right now through Salty Underground, and if you order $75 (not hard to do), the shipping is free. For example, 12 of the 1/4" nudi's comes out to $75 total, or $6.25 each. When I have found them locally, they are $18-25 each.
Shoot, thanks for posting. I went with reeftown last week. 12 1/4 nudis for 120 including shipping. Yikes. I have seen some demise of the beast anemone. Will keep you posted regarding success. I had 25-50 visible nems, small to mid size in a sump less 65 gal tank.
Never got around to checking for nudibranchs but did pick up some Frank's Tanks's - F Aiptasia @ LE Corals this weekend. Killed quite a few today - hoping this may be a longer term solution.