Yes, sort of except with vertical sides. Here is a picture from the factory web site. This building is smaller than the one I bought but, you will get the idea.
You buy just the shell. Any accessories, such as insulation, heating, cooling and electrical are purchased locally.
As far as the aquaculture is concerned, I have scaled back considerably from my original plans. I have aquariums and tubs totaling about 1200 gallons. These will be housed at one end of the building. I also installed 525' of 3" thin wall
PVC 60" under the concrete floor for geothermal cooling of the system water.
The excavator rough graded first and then leveled by hand the area for the geothermal loop. There are 25 loops, 20' lengths
PVC and then the return run of about 25', so about 525' of cooling circuit.
Finishing the loop.
Bringing in the fill dirt to raise the building foundation 3' above the nearest blacktop road. A little insurance against flooding. Notice the height of the stand pipes.
Filling and spreading went on for days until...
It was nearly as tall as my wife.