Thank you Kasrift for the honorable mention
I have an entire write up on how I care for my shrooms, that can be found on "Mushroom corals are my first love

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Ive never tried the Hikari coralific delight, but typically shrooms are very good eaters and not too picky. I am currently using Fauna Marin LPS pellets, after I initiate the feeding reaction by basting a little amino acid/phyto blend. I feel once the shroom is curling up, ready to consume food, I then place a pellet or two directly in the "basket" and that preventls it from floating away or a fish stealing it.
If your mushrooms are detaching, 9/10 times its because your flow is too aggressive. Almost all of my mushrooms with the exceptions of bigger ones, are placed in a cage, medicine cup, or basket with the top/lid off.
If youre looking for some real nice, expensive shrooms to add into your collection, shoot me a DM, or add me on FB.