In the next year or two I will be building a house. I want to pour a large aquarium into the basement floor. I will be framing a wall 20-25' across a corner in the foundation. The basement will be 8' deep and this corner another 8' below the floor. The wall will be 4-5' above the floor and in the center I want a 4'' think by 5 ft long piece of acylic glass framed into the concrete. this will give me a viewing window into a 12' deep corner style aquarium. Who sells custom acylic and what are some waterproofing materials that will seal the concrete? I would also like to make the walls look like cliff or rock ledges instead of smooth concrete. Any Ideas???