Hi, if he is still bloated try peas, you buy a pack of frozen peas and put some in hot water, then pop the pea open with your figures, and break it into small pieces and feed it to him, this helps them to poop, also try not feeding him for a few days. Hope this helps. :)
@Courtz05: Thank you for the suggestion but I would prefer to give him Daphnia as a natural laxative rather than a bit of pea.
Update: No poops still. I'm racing off to the store for freeze-dried Daphnia (I will soak the heck out of this) or frozen after I finish writing an itemized spreadsheet for my club that needs to be in by 5pm here. He's still giving me the mournful 'Feed-me-I-love-you'-look. Little stinker.
Update: Soaking 3 bites of Daphnia as the store did not have the frozen. Kasper is giving me his 'Hungry-Eyes'. Ten minutes in warmish water should be long enough to soak em? How long until I see... well, it take effect? That is, if it works.
You know - that's a good question. I've only given my little guy daphnia once and he ended up having a poo overnight - though whether or not it was from the daphnia or not, I don't know. I guess it's just a wait and see kind of situation? You could try searching some threads to see if someone has an answer in an older post. Hopefully it will take effect by morning :)
Update: So, after two days of fasting Kaspers rounded out stomach has disappeared but now, he's being picky and ignoring his food (flakes, pellets, and bloodworms) and acting very shy. I think I may have over-fussed with him on this constipation so... yeah.
Well, the silly fish... Did he ever poop? I guess just keep offering him food. He'll eat when he's ready. I know 2 days fasting seems like a lot, but I know several people who do it regularly and their fish are just fine... Keep me posted, I feel terrible that my advice lead to him being picky and shy :(