I got my gobi on Tuesday and I was having trouble getting food for him because of the other fish gobbling the blood worms. He finally is staying in the cave that I wanted him to stay in and now I can feed him bloodworms in that cave by using a turkey baster. I also feed the other fish worms at the same time. My parrot fish are such little piggies that after they were done chowing down their bloodworms, one of them managed to squeeze through the cave opening to eat the Gobi's food! You should have seen the Gobi assert himself and kick him out!! After he kicked out the parrot fish his head was poking out of the hole of the cave as if to say, "AND STAY AWAY OR ELSE", and then he went back to eating his breakfast.