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-   -   Making Cube out of 2 x 33G? (http://www.canreef.com/vbulletin/showthread.php?t=34576)

KrazyKuch 08-14-2007 01:12 AM
Quote:
Originally Posted by sphelps (Post 265597)
If you keep the tank below 20" tall and do not increase the the length (36") your tank will be fine provided you brace it.

Actual volume has nothing to do with glass thickness, only height increases pressure (m*g*h), however the hydrostatic force created by this pressure will create a bending moment (deflection) and the longer the tank the larger the bending moment, but 36" is fine for 6mm.

No point going overkill on glass thickness, you just loose clarity and add weight.
couldn't have said it better myself

Der_Iron_Chef 08-14-2007 04:13 AM
Cool. Thanks guys. I've separated the two tanks (not a positive experience!), and now I have the fun job of stripping all the old silicone off of it. Let's see if I can actually make this work!

fortheloveofcrabs 08-14-2007 04:25 AM
Seems scary to me... you are doubling the water volume, and upping the pressure behind the glass - trying to push it out. I wouldn't. Just my 2 cents.

Der_Iron_Chef 08-14-2007 04:40 AM
This guy's thread on RC shows that he had a 48" x 72" tank made with 1/2" glass. I'm not sure of the height...I think 20-22". I would think a 36" x 36" tank at a height of 18" would be ok with 1/4" glass.

Everywhere I've read said as long as you don't go above 18", 1/4" glass is ok. But people are makin' me nervous :)

Zylumn 08-14-2007 05:05 AM
Drew
Nice size tank. I am tagging along. Hope this works as I've will try 2 x 20g 24x24x16. Which makes me wonder isn't a 33 gal 36x12.5x16?? which would make your tank 90g. Sweet setup easy to light. Edit it is 36x12x18"
Kevin

Der_Iron_Chef 08-14-2007 05:26 AM
I will re-measure the height! I thought it was 18", but that was a quick measurement when the tank was still together, etc. I sure hope this works! Was thinking of a 1/2" bottom pane.

LeeR 08-14-2007 05:49 AM
If you haven't already stripped the silicone take some razor blades and get as much of it off as you can, then get some of the original mister clean magic erasers and some water and it takes that grease left over stuff off really well.

Der_Iron_Chef 08-14-2007 12:39 PM
Quote:
Originally Posted by MacheteAvenue (Post 265787)
If you haven't already stripped the silicone take some razor blades and get as much of it off as you can, then get some of the original mister clean magic erasers and some water and it takes that grease left over stuff off really well.
Great tip! Thanks!

Zylumn 08-28-2007 12:26 PM
Hey Drew how are things progressing. Looking for a bottom piece and do you have the sides cleaned off yet?
Kevin

sphelps 08-28-2007 03:49 PM
Quote:
Originally Posted by fortheloveofcrabs (Post 265763)
Seems scary to me... you are doubling the water volume, and upping the pressure behind the glass - trying to push it out. I wouldn't. Just my 2 cents.

As stated before volume has nothing to do with pressure, only hieght (pressure = density * hieght * gravity). The only force that pushing outwards on the glass is a hydrostatic force cause by the pressure.


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