i need to know which is more efficient, i have a 240 long 8x2x2 glass, with a 55 gallon sump. i have the chance to upgrade to a 5x3x3 acrylic (roughly) with a 200 gallon sump. which is more efficient in the long run? i currently have some smaller peaceful fish an the biggest one is the naso. so is it smarter to stay with the long tank with more swim room or the shorter tank with more width and the larger sump????