Well, I made the feeding station out of a jelly jar. It has a smaller opening and is about as long as my fox face. How do I know, you ask?
Well, my piggy of a foxface managed to squeeze his way in, but couldn't back out! :lol I wound up having to lift the jar out of the water and let gravity do its work. The mandarin didn't seem very interested in the feeding station. However, when I dropped in a cube of brine, he wound up eating a couple of pieces. I will get some more frozen mysis tomorrow. His behavior seems fine...still grazing among the rocks and such...just looks pretty thin. If he eats the frozen, should I stick him in my 10 gallon for a while to fatten him up?

If he does wind up eating frozen fine, I will probably move him to my soon to be seahorse tank. There should be less competition from fast moving fish.