Sitting on my back deck, I have no room for these monsters! Just need some aquarium silicone and maybe a little epoxy, and you’ve got yourself two amazing tanks! Comes with two 250 watt metal halide lamps. 300 gallon measures 8 feet in length, rectangular. 780 is irregular but 8 feet as well. Tanks actually fit together as one showpiece. Call Kyle any time for any questions! 413 426 7633