the reason im thinking of taking the niger trigger off the list is i read they like to rearrange the tank not sure i want to wake up one morning and find a rock has gone thru the tank. as far as the tangs im fine with adding them together. and i couldnt pass the tank up 450 bux for the tank, stand, 2 metal halide ballasts (each one runs 2 lights, one is 2x175 and the other is 2x250 , 4 metal halide lights, a sump that im not using.