i recently got my first BGK, about a month ago, so heres what i did. I got him two ghost hides, partially cover the sides in gravel, put a copule small stone flakes on top so i can still see him, but hes covered and feels secure. To get food directlly to him i use my gravel cleaner oddly enough, disconnect it from the tubing, leaving a big end and a small end. I take frozen bloodworms and drop them in the tube while it is in the water. they then slowlly disolve as i position the small end right near his hide, or wherever he is. at first he didnt know what i was doing but within just three days, he now waits for the bloodworms to thaw and sucks at the end like its a nipple delivering the bloodworms, he now eats like a champ, awsome little guy, love him. so, try what you want, thats just what i did and it worked really really well. ive also seen him criusing all around the tank at night, eating leftover shrimp pieces and pellets from the other fish, so there is a good chance he has eaten at night, when your gone and not watching