Look into Gorilla Racks, standard fishroom equipment. Those look more like skid racks, which would be total overkill for tanks. You might get a deal on skid racks if you find a warehouse shutting down, hope you have high ceilings!
well a 75 gallon US or a maybe 110 us depending upon the prices of the tanks.
But i now it is over kill but I found a place that sells them for like $150. and they come in 4 foot high sections which would bet perfect. Plsy they have racks where you can add plywood atop thick cross beams.
You have never worked in a warehouse before have you? At mine they are sky high with tons of stuff. I was just curious as to if it was affordable or good for tanks in a stand alone single rack.
but it looks like $150 to $200 would be the price. Not bad. I think it would be easier to deal with thank wood.