ok guys i got a idea and i need some suggestions. i am thinking of building a 3 ft by 5 ft tank by 2 or 3 ft deep depending on what i can fit on my trailor. it will be alum. and it will bolt to the under side fo my pontoon with a trap door on hinges in the floor. since most of it will be under water while in the water i dont think weight will matter much. or am i wrong? this will be for tourny fishing till they are released. i will have to pump water in and out so i will have it sealed on all sides. any body that can offer ideas or has seen someting like this please do tell thx.