When the water temps approach or reach 75 degrees. There are two ways to do this. Either take several bags of ice and put them in your livewell, or get you a koolwell system installed into your boat. I have the koolwell system myself. Not only does it keep my livewell at a preset temp of 72 degrees, but it also makes one heck of an ice chest to store your drinks/food etc. . As for bags of ice, I normally put 6 bags of ice in the livewell itself. I also put the prescribed amount of catch and release (see http://www.surelife.com
for instructions) in with the ice before I fill up the livewell to nuetralize the chlorine. Launch with your livewell closed. Wait until you get where you are going to fish to fill water. That way launch area water, usually contaminated with gas/oil etc. won't affect your fish. After that , it is a matter of keeping your aereator on all the time with a fish in there, and changing out the water once or twice during the day. When you come back in, make sure you don't fill water into the livewell from the launch area. Easy as pie !