Question:    What's the ruling? Does he get the high and split low or lose the whole thing?

Answer:    As "chip declare", online poker is not played in card rooms, as a result, all home games must establish their poker rules on this situation. The more common rule applied in casino gaming strategies is that when you declare your poker hands, you must win both outright. This certainly adds a lot of strategy to your poker strategies and makes it VERY difficult to declare both ways in a game like Omaha, where it's so easy for more than one poker players to have the nut low. Actually, the poker player must know that "ties get 3/4" rule is the better rule, but that's just a personal opinion. If you’re gaming in an online casino, you must never had the situation to come up before, and there is, therefore, no precedent. Online Poker gaming is much better if there is some precedent in the game. This is one of the tricky aspects of playing poker chip before being declared.