The tank you are proposing is an impossible build. No way will you be able to make that function in a saltwater environment. Probably not even in a freshwater, unless you are going to fill it with tetras and guppies.
Here are some suggs.
Be more realistic in your dimensions. 8x4x3 is still a very impressive tank, and is much more realistic to build DIY
. The 12 inch 'depth' you are wanting would leave you with no options. None. You'd be lucky to fit rubble LR
in there, much less anything that would look cool.
The 6 foot depth you want would be an engineering nightmare to manufacture and light. Youd be looking at several thousand dollars to buy a piece of glass that big and that thick. I'm not even sure you would even be able to find someone to make it for you. I don't think acrylic would be an option at that size. Oh, and don't forget the lights. You're talking 10's of thousands of dollars to get enough light in a tank that deep to make it functional. Again, try thinking a little less Sea World size and a little more residential.
Unless you are on a slab, the weight load of a tank that size would be to much for any home without significant bracing and reinforcing. The deeper tank helps with that by creating a larger footprint, but even with a 48 inch depth, you are talking immense weight and pressure.
As someone stated before, the $20 per gal
rule is pretty sound, but it gets skewed significantly once you go above 200 gal
. And not lower. You'd be safer guessing twice that. I'll let you do the math for a 750 to 1000 gal
If that hasn't talked you down off of the roof, then by all means, have a crack at it. I hope it turns out well for you. I would like to hear more about how you are coming along, so make sure you post often along the way. Who knows, maybe you had already taken some of those things into consideration and have workarounds.
If you do decide to give a 'smaller' big tank a try, I have a link that might be helpful.
has some good info on it about DIY
tanks and stands.
forums here are also a great place to glean useful info.
Wish ya the best.