Planning a 2.5G Cube... - The Planted Tank Forum
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post #1 of 21 (permalink) Old 06-17-2006, 12:22 AM Thread Starter
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Planning a 2.5G Cube...

So, school's out now, and I want to build a 2.5-gallon aquarium, but first there are a few things I need to know. I know how and where to use the tape, and silicone, and which pieces of glass go up first, and stuff like that, but what I don't know is what kind of glass to buy, what kind of tape, and especially what kind of silicone. Also, is silicone all you use to hold the glass together? It seems like it wouldn't hold for long, but what do I know? Is there anything else I need to know?

Thanks,
Josh

BTW the demensions will be 8"x8"x8" and it will house 10 cherry shrimp.

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post #2 of 21 (permalink) Old 06-17-2006, 12:45 PM
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Have you seen my nano?

https://www.plantedtank.net/forums/di...lots-pics.html

If you ask ill try to answer all questions in this tread.

Quote:
what kind of glass to buy
For a 2,5 gal 4 mm would be fine.

Quote:
what kind of tape
Masking tape only, but you dont need to mask - though the seams will be smaller if you use it.

Quote:
what kind of silicone
standard aquarium silicone, (without fungicides (spelling?)) clear is preferrable because it dont tend to attract attention.

Silicone can hold almost forever if used correctly, and the aquarium dont need any reinforcements.

Quote:
Is there anything else I need to know
I dont know - just ask

Good luck!

From 2.1gal Nano to 14gal:


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post #3 of 21 (permalink) Old 06-17-2006, 04:03 PM Thread Starter
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Yeah, I read your thread, and Scolley's 75G. But, when I order the glass, do I just tell them the demensions and that it shouldn't be tempered? I think I read something about sanding the edges, is that necessary, do they (glass shop) do that? Is it sheet glass I want?

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post #4 of 21 (permalink) Old 06-17-2006, 08:30 PM Thread Starter
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Hopefully I can order the glass tomorrow, and get the supplies.

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post #5 of 21 (permalink) Old 06-18-2006, 04:04 PM
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I used plain nontempered sheet glass, and sanded edges is not a must, but a good decision, since it makes the aquarium look better.

Make sure that you tell them (glass shop) that the dimentions must be held within 1/10 of a millimeter, and the cuts are 100% straight (90), Messure the diagonals to ensure that the cuts are straight. If not - dont use them, since it will make gaps.

From 2.1gal Nano to 14gal:


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post #6 of 21 (permalink) Old 06-18-2006, 04:21 PM Thread Starter
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And I'm assuming that for the two side panels I should take 8MM off the length?

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post #7 of 21 (permalink) Old 06-18-2006, 10:38 PM Thread Starter
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So how do I sand the edges?? I read a few DIY aquarium articles (which all suggested sanding the edges), but none of them said how.

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post #8 of 21 (permalink) Old 06-19-2006, 06:10 PM
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I would make them (shop) sand the edges since it requires special sanding stuff.

The tank should be like this from the top, with the bottom inside:

(So if you want a cube shape, the sides should be 8mm shorter - yes)



For a tank this small you dont really need a gap for silicone.

From 2.1gal Nano to 14gal:


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post #9 of 21 (permalink) Old 06-19-2006, 08:46 PM Thread Starter
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Quote:
Originally Posted by Anti-Pjerrot

bottom inside:


For a tank this small you dont really need a gap for silicone.
Oh boy, now I'm confused. ok, bottom inside, like with the front back and side panes encasing the bottom pane? That doesn't make any sense, although, if I didn't take 8MM off the sides then it would work... is that what your talking about? I thought the front back and sides would be on top of the bottom, is that incorrect?

And about the gap for silicone, are you saying that I only need to put it on the inside corners (Instead of inbetween the glass panes)?

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post #10 of 21 (permalink) Old 06-19-2006, 08:53 PM
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This is a quote from nater3 starphire cube thread
Quote:
I put the four sides on top of the bottom peice.

Bottom 12" x 12"
2 sides 11.5" x 12"
2 sides 12" x 12"

Set up the corner first, then the next 11.5" x 12" then finally the last 12" x 12" just pops right on the end.

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post #11 of 21 (permalink) Old 06-20-2006, 03:07 AM
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http://www.garf.org/

Go to the DIY section and to tank building. It will help calculate the dimensions and give detailed steps on how to put it together. Since you are building something very small, you'll want to deviate from their plans.

I made a 10" cube (acrylic) using their steps. No upper rim supports - none needed.
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post #12 of 21 (permalink) Old 06-20-2006, 03:09 AM
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Oh yeah, I've sanded glass using hardware store sand paper. I was making replacement glass tops from the hardware store and just needed something to take the sharp edge off. I can't recall the grit, but I'd guess something a little higher (400+ maybe?) to simply clean up the edges.

But get the cutting company to grind them if you can, even if it's a few $$$ extra. Well worth your time and it'll probably save you some slightly cut fingers.
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post #13 of 21 (permalink) Old 06-20-2006, 01:49 PM
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The bottom should not hold the sides - it could break the bottom!



The front view should look like this

From 2.1gal Nano to 14gal:


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post #14 of 21 (permalink) Old 06-20-2006, 04:24 PM Thread Starter
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Got it! Alright I went to GARF and got the deminsions; 2 - 8"x8", 2 - 8"x7.5", and 1 - 7.5"x7.5" That look right?

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post #15 of 21 (permalink) Old 06-20-2006, 04:28 PM Thread Starter
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Oh and what about the silicone?

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