I have two tanks in my Nitro, they're 25 gallons each. My question is, can I keep my aux tank empty when I don't need it? I fish mostly 600 acre lakes, and smaller, and I wont be using that much gas on average, and don't want it to go stale. Also it will take about 165 lbs off the weight of my boat. I was wondering if it would be a safety issue, because of the fumes from the small amount of gas in the aux tank, or does that not make a difference? I'll just fill it when I have a tournie on a large body of water. All opinions welcome, thanks.