Guys, keep in mind the 1,600 gallon aquarium is being made by ATM. A company which builds tanks, obviously a tank made by a company is going to cost more than a tank which is home made. Also the tank for 75K is a custom shape which is hard to do, will require bending / warping. That price also includes delivery, installment, and I would assume all of the filteration. Obviously ATM is going to charge more for everything becasue they themselves need to purchase the materials and a price from another source. Requiums tank however was built all by himself, which would have saved him lots of money, and as stated before, he knows alot of people in the hobby which helps, trust me. So its very possible that he did build the tank for around $3,300, why would he lie?