Diy Tank And Stand

hI everyone I am wondering if anyone has built their own tank? I am exploring the option to build my own tank and wondering if anyone here has done that and the costs behind it. I would be building a 125(ish) gallon tank.
thanks for any input!

 

Built one before. When I built it, it costed about 25 dollar (eight 2 by 4s).

 

thank you, I know I could do a stand easy and cheap, I did one for my 30 gallon.
I guess I am wondering more on making a tank

 

thank you, I know I could do a stand easy and cheap, I did one for my 30 gallon.
I guess I am wondering more on making a tank

What type? (glass, acrylic, concrete, plywood, plywood & glass, plywood and acrylic, concrete & glass, concrete & acrylic etc.)

 

Unless you are going over 100 gallons just buy a tank. Its cheaper. The cheapest route is rubber lining inside plywood. We throw them together all the time at work for temporary retention ponds.

 

What type? (glass, acrylic, concrete, plywood, plywood & glass, plywood and acrylic, concrete & glass, concrete & acrylic etc.)

glass or acrylic for the tank. Cheap yet trust worthy is my goal

 

It will probably be cheaper to buy a 125 gallon glass aquarium rather than make one (depending on where you live), but if you really want to make a glass one, you will need 7 sheets of 1/2 inch glasses, depending on the dimensions(or buy glass and cut it yourself, but I've tried that before and it really isn't easy to get a straight cut). 5 sheets will make the bottom and sides of the aquarium. The two front/back sheets should be sandwiching the side sheets together, and all for should be sitting on the bottom sheet.
First, apply a 1/2 inch thick bead/string of silicone along the edge the bottom sheet. Then put the front sheet on the silicone. Apply silicone to the edges on the side of the front sheet, where the side pieces will connect. Then push the side pieces in (one at a time). Apply silicone on the edges of the two side sheets, then push the back sheet in.
After doing so, wipe the excess silicone off, and let the silicone dry for 36 hours. After that, silicone the inside edges of the aquarium to make it waterproof. Then silicone the two remaining pieces (which should be about 6-10 inches wide, and the length of the inside of the aquarium) onto the top of the aquarium to hold the aquarium together, since the aquarium will bow, or possibly crack, without them. You will also need some dowels to hold the bracings in place while the silicone cures.
There are also many tutorials on how to build glass aquariums on the internet.