You can't "Build" it from scratch. It requires very experienced craftsmanship with wood working and acrylics.
However if you are referring to the kit, they come with detailed instructions on how to do so. From assembling to adding fish, to maintenance, its all there.
I thought that they are all glass.
The Oceanic BioCube 29 gallon from www.bigalsonline.com is a great choice.
A 29 gallon aquarium is far too small for a stingray for all but the most temporary of housing arrangements. So, no.
Usually a small, dedicated salt water aquarium is perfect for seahorses. A great choice for seahorses are the 'nano' tanks sold as packaged deals. Check out the Oceanic BioCube 29 gallon at www.bigalsonline.com , it is perfect for seahorses. I put a link to the product.
They are relatively small tanks.
29 miles per gallon is 12.33km/L
The average price of a gallon of regular gasoline was 29 cents in 1953, 1954 and 1955.
416/29=14.344827*3.25=$46.62416/29=14.344827*3.25=$46.62
29 miles per gallon on a 25 gallon tank is 25*29 = 725 miles per tank. So one [partial] fill will be enough.
The national average price per gallon in 1953 was 29 cents.
39cents a gallon (Canada)
870 miles / 30 mpg = 29 gallons 29 gallons * $4.00 per gallon = $116.00 total