Just got a synodontis notatus or nummifer He is 5ish inches and is very very skinny (bought at a auction in bag couldn't really see the lack of a belly). How do I fatten him up he is in a 125 with 2 emperor 400 filters, haps and peacocks. They get fed New Life Spectrum. I have had him in the tank for 24 hours and have put NLS right and left in front of him, his barbels have touched the food and his mouth is over the food (2mm) but never even tried to eat.