Hi guys, just thought I would let you know. His stomach does appear to be filling out a little. He spends most of the day behind a massive Juwel filter so its difficult to get a good sighting, but his stomach is more flat than concave now so it looks like he is heading in the right direction. What I done was add a garlic mixture to food on the saucer but I also overfed just before turning lights off each night, then done a water change the next day. Seems to be ok and no ill-effects for anything else. Thanks for the help!!