3/8" will be iffy at best, look for at least 1/2" or make 2 viewing ports.
Why the 1ft overlap?
Have you considered how you are going to mount the glass?
It will need to be gasket'd (look it up in Dr Joe's supplementary dictionary) in place with silicone to allow for differentials in contraction factors of materials.
Are you using reinforcing wire or rebar for the wall to bottom connection?
Are you framing/forming the entire box?
If your going to use the pre-mix idea (a good one since texture will be consistent) you have to have all your framing ready and only thing let to do is pour since the pre-mix started curing when they poured it in the cart.
Look in your area for "Construction Salvager's", they come in and strip buildings of anything recyclable before remodeling or demolition. I've found large 1/2" - 3/4" glass & acrylic windows and just missed a bunch of 1" acrylic from a check cashing place that was demo'd.
Keep everything in this thread so people don't get confused following it (and I don't have to do a cleanup
).
Good luck,
Dr Joe
.
Why the 1ft overlap?
Have you considered how you are going to mount the glass?
It will need to be gasket'd (look it up in Dr Joe's supplementary dictionary) in place with silicone to allow for differentials in contraction factors of materials.
Are you using reinforcing wire or rebar for the wall to bottom connection?
Are you framing/forming the entire box?
If your going to use the pre-mix idea (a good one since texture will be consistent) you have to have all your framing ready and only thing let to do is pour since the pre-mix started curing when they poured it in the cart.
Look in your area for "Construction Salvager's", they come in and strip buildings of anything recyclable before remodeling or demolition. I've found large 1/2" - 3/4" glass & acrylic windows and just missed a bunch of 1" acrylic from a check cashing place that was demo'd.
Keep everything in this thread so people don't get confused following it (and I don't have to do a cleanup
).Good luck,
Dr Joe
.
....for the 1' overlap...i was short on money for a 8' long acrylic by 3' high one...plus i wanted to make the 6' long acrylic to be more secure within the concrete and one other thing it that i will be adding 2 layers of Aquarium Silicone around the whole acrylic from the interior of the tank and on the exterior. I was thinking of get some rebar but just thought i do the wire idea instead. And as for framing...im not sure...what do you think i should do for that part? And pre-mix is the one i will be going withl, and i'll look around for the Construction Salvager's thing too later 
thanks for the info Dr Joe! 
i will be having 2 different Filters running in this tank...one filter is rated for 2,400 gallons but im unsure about the gph...i'll check when i go back to the store. And im looking around for any Rubbermaid tank over 100 gallon and convert it to a wet/dry system with a stationary holding box in it with the heaters attached to the wall of the Rubbermaid. I will also insulate the tank by having some insulation around the walls and on the bottom of the tank as this is going to be concrete and it gets cold out here in my area so i want all the heat to stay in the tank and not out of the tank.
