You can also use the Oxygenator system as it helps keep fresh O2 in the water, it is not the actual water temps that kill the fish but the lack of sufficent oxygen, as hot water looses o2 very quickly. This along with the other methods as mentioned above should help keep them alive. Also if your are not in a tourney then DO NOT put them in the livewell. If your are going to eat them them them just put them on ice.