I just want to know if it is strong enough to hold a couple of hump back whales and 50,000 cubic feet of water.
I always thought that was funny. I love Star Trek, but that was a false problem. They could have used steel walls...
50,000 cu ft/7.48 cu ft per gal=6684.49 gal*8.34 lb per gal = 55,748.65 lbs
Plus the average weight of a Humpback Whale= between 25 and 40 tons*2=50 - 80 Tons*2000lbs per ton=50,000 - 160,000 lbs.
Total = 105,748.65 - 215,748.65 lbs.
I say it depends on the support structure under the Tank.
Have to call the Manufacturer for the Flex Limits on the sides.