Garrett,
Measurements are approximate. My tape measures are already at my new place, so I had to use something else to measure and then I measured it, but they are really close.
Short tanks - 48 inches long, 14 wide, 12 tall
Long tanks - 64 inches long, 14 wide, 12 tall
I would like to get them all out at the same time, and have someone else interested, so let me know. You do have first dibs on them though. Thanks.