Building Aquariums

Given the required 4.5' height I would think that 20mm acrylic would be too thin. Something you should DEFINITELY look into.

I've messed around with acrylic stuff off and on for a few years now.
I've made over-flows, sumps, filters etc. And have a clue as to how it's "supposed" to be done.

Making a 4.5 ft tall aquarium, is not a beginner project.

My advise would be to go to someone like this... http://www.fishtanksdirect.com/index.aspx and spend 5-6k(wild guesstimate) to have them make it. Oppossed to spending 2.5k+ on the materials, too have it fail when 3/4 the way full.

If the tank is made correctly or not, I don't believe a frame made of stainless angle will do any good.

Mean while, you could get yourself some 6mm(+/-) acrylic. And see what it takes to make something like a 35cm T, 30cm L, 25cm W tank.
You should be a ble to experiment with this for a $100(US), compared to spending 2k on what would end up at best... a really cool dog house.

Rbishop said:

This member can teach you a lot...

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Wow, thanks!
I'd been away from the forum for a couple of years, and hadn't come across him since I've been back.
I was on a thread the other day wishing we had someone here that really knew acrylic.
The bad part is that I'm finding this at 11PM lol. No sleeping for me tonight. :hypnotized:



See ya over there dodoli.

Weld-on #7 is a good acrylic glue to use. I do however believe that 20mm is marginal for a tank that tall. It may work, but you will have significant bowing.

Andy

SMinNC's comment

you could get yourself some 6mm(+/-) acrylic. And see what it takes to make something like a 35cm T, 30cm L, 25cm W tank

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was, I believe, a suggestion the 6mm would be a less expensive way to learn not only technique but the abilities and limitations of the material on smaller prototypes.

You said very specifically

The material has to be 20mm thick acrylic

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. You already have this and want to use it to build a tank? At 4 1/2 feet tall it is going to be very difficult to perform maintenance.

There are many people here who can help but the more information you can give them, the more accurate the advice.

Best of luck!