how many fish can survive in one bag for how long without a heater, does anybody know? or, in general, how long can a fish survive in a bag, without heater. And i should probably say the fish would be in a car on a ferry.
Well on a ferry they wouldn't last as long because they would be exposed to cold wind which would lower the temperature of the bag quite quickly so probably less an hour, in a car it would be warmer and they could last approx and hour and a half to two hours depending on how much oxygen they have. It's not just about the water temperature though, the bags only usually have enough oxygen in them for the fish to last approx 2 hours, maybe less. The fish however should not be kept in the bag for longer then 20 minutes.