Need help please! I received some Salmon Fav chicks from cackle hatchery last week and they're not acting normal. They walk about 5 inches then flop on their side and extend a leg out. They cannot stand normal either. Even when they slowly walk to the feeder/waterer they flop down on one side and extend 1 leg out. When I contacted the hatchery, they advised possible oxygen depletion. Said to give them apple cider and egg yolks. They are in a 120 gallon tub with plenty of room so I k on They're not getting to hot. Please help!