Have you looked into a chestnut moray? Those are smaller as well. I personally do not QT morays. They are intolerant to copper. I use a very very very low dose of copper safe in my DT when I add a new fish and remove with carbon. The morays tolerate that well. I dont do that often; just if I see something on a new fish. No inverts so I can get away with that. As for feeding baby morays should be offered food every other day until they start to bulk out and grow in length. I then transition them to every two days, then every 3-4 days. When they are adults I let them tell me when they ate hungry. They come out and swim and look for food; then I feed them until they are full. Usually 2 to 3 times a week, sometimes once a week. All my morays have different feeding schedules. My two older ones dont eat as often as my zebra who is still growing, and my white eye likes to eat every 2-3 days right now. He is the youngest and still bulking out. I feed mine table shrimp, LRS chunky, silversides, and sometimes rod’s predatory blend. All those foods have a variety of foods that morays eat and they all do very well! One of mine really only takes silversides, so I soak those in vitamins and will sneak other food in at the same time as the silverside and he will usually eat it and not know other foods were there next to the silverside