Not what you think, while these are hydroponic sumps, commonly used in growing pot, the reef keepers use them to grow corals. There are eight 120 gallon 4x4x1 foot sumps.
Unfortunately, the six custom made 4x2x1 foot, 60 gallon acrylic flat tanks are painted white to increase illumination for the corals. That will take some effort to remove.
This totals 176 square feet of surface area, all one foot deep for 1,320 gallons capacity. Going to need to build another greenhouse.
