180 Gallon Upgraded to a 220 Acrylic - The Planted Tank Forum
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post #1 of 56 (permalink) Old 12-30-2016, 05:24 PM Thread Starter
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180 Gallon Upgraded to a 220 Acrylic

Hi all,

So I traded my 180 gallon glass aquarium to someone on craigslist. I was moving down south so I could not risk a 180 gallon glass aquarium to survive that trip. Meanwhile, the acrylic tank owner said the tank scratched too easily for his liking and keeping a saltwater tank he preferred his corals to be closer to the light source. Thus, we made the swap with one another. I have never owned acrylic before, so I am unsure how I can disinfect the tank without damaging the acrylic. Since the tank is acrylic there is no silicone on the seams, so I am wondering, what should I look for to determine the strength of the tank. Lastly, any suggestions as to what I should keep in this tank?! I currently have four angelfish and a bunch of corys with four phantom tetras.

So far, I have built the stand for the tank using 2x6's as well as 4x4s for each corner and middle post of the tank. All I need to finish on the stand is wrapping the bottom of the stand with 2x6s and topping the tank with plywood.

Bump: Also, not too sure why my photos never posted originally lol.
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Last edited by Daniel12490; 12-31-2016 at 12:24 AM. Reason: spelling
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post #2 of 56 (permalink) Old 12-30-2016, 10:43 PM
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I wouldnt trust that stand, the way you have built it puts all the weight of the tank on the screws, not the timber itself.

edit, this is what you need to add:



Notice the differences between your stand and this one that I built. This way the load of the tank is support by timber, not screws.

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post #3 of 56 (permalink) Old 12-30-2016, 11:05 PM Thread Starter
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Hey Sean,

Thanks for the advice, the first pick was mid-done on the stand, just needed a break. The stand is now finished, how does the support seem now? I've never built a stand on my own so here it is lol.

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Originally Posted by Sean W. View Post
I wouldnt trust that stand, the way you have built it puts all the weight of the tank on the screws, not the timber itself.

edit, this is what you need to add:



Notice the differences between your stand and this one that I built. This way the load of the tank is support by timber, not screws.

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post #4 of 56 (permalink) Old 12-30-2016, 11:09 PM
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Ah, much better.

Only thing I would change is you want the vertical boards on the end to overlap both bottom pieces, bridge the gap so the weight is transferred to both bottom pieces, not just one. like this:

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post #5 of 56 (permalink) Old 12-30-2016, 11:26 PM Thread Starter
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Ah, okay, I will go adjust that lol. Since I was screwing them into a 4x4, I didn't know if they had to butt right next to one another or I had some wiggle-room on that.

Quote:
Originally Posted by Sean W. View Post
I wouldnt trust that stand, the way you have built it puts all the weight of the tank on the screws, not the timber itself.

edit, this is what you need to add:



Notice the differences between your stand and this one that I built. This way the load of the tank is support by timber, not screws.

Quote:
Originally Posted by Sean W. View Post
Ah, much better.

Only thing I would change is you want the vertical boards on the end to overlap both bottom pieces, bridge the gap so the weight is transferred to both bottom pieces, not just one. like this:

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post #6 of 56 (permalink) Old 12-30-2016, 11:31 PM
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Do that and put plywood on top with a thin layer of foam between the tank and the plywood and youll be right as rain. Be sure there is something between the tank and the plywood, dont put an acrylic tank directly ontop of the plywood.

If you have the lumber for it, I would also like to see braces here for the outside legs, this keeps them from buckling inward, its unlikely that will happen, its not mandantory, but if you have extra wood, its a good idea.

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post #7 of 56 (permalink) Old 12-31-2016, 12:06 AM Thread Starter
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Two questions, any specific reasoning why the acrylic shouldn't be placed on top of the plywood? Second question, where can I find foam for that size? I would assume Home Depot or Lowes?

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Originally Posted by Sean W. View Post
Do that and put plywood on top with a thin layer of foam between the tank and the plywood and youll be right as rain. Be sure there is something between the tank and the plywood, dont put an acrylic tank directly ontop of the plywood.

If you have the lumber for it, I would also like to see braces here for the outside legs, this keeps them from buckling inward, its unlikely that will happen, its not mandantory, but if you have extra wood, its a good idea.

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post #8 of 56 (permalink) Old 12-31-2016, 01:03 AM
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Quote:
Originally Posted by Daniel12490 View Post
Two questions, any specific reasoning why the acrylic shouldn't be placed on top of the plywood? Second question, where can I find foam for that size? I would assume Home Depot or Lowes?

Plywood is suggestion for acrylic, no buffer. Glass is a different story. Ignore the false statement below, but I left it for reference.





Original Post:

I think yoga mats, thin ones, work well too. But yes, a hardware store should have thin foam. I think Bulk Reef Supply used some mat in their 52 weeks of reefing series on YouTube. May be worth checking out since it was a HUGE acrylic tank like this as well. One of the first episodes is them setting the tank on the stand. It is a good chunk of information.

I couldn't find an answer when I googled, I got a bunch of DIY tank builds. Someone can fill you in on why a buffer is preferred.
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Last edited by Freemananana; 01-09-2017 at 03:21 PM. Reason: I lied!
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post #9 of 56 (permalink) Old 12-31-2016, 01:05 AM
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The foam absorbs any minor irregularities in the plywood that can cause stress points on the large surface area on the bottom of the acrylic tank.

The foam doesnt have to be thick, just 1/4" or less.

If you're confidant in your work and dont use cheap plywood that is very rough, you can go without the foam.
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post #10 of 56 (permalink) Old 12-31-2016, 01:59 AM Thread Starter
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Okay so foam it is! I will have to go out and find some.
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post #11 of 56 (permalink) Old 12-31-2016, 02:20 AM
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Tractor supply sells a dense rubber mat that's about 3/8" thick. Not sure what it's for, they have it on a roll outside. It's black, comes in a 48" width and they sell it by the foot, think it's about $5 per ft (could be off on the price, dont remember exactly)

It's fairly hard, but still mashable...if that makes any sense. I have it under a couple of tanks.


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post #12 of 56 (permalink) Old 12-31-2016, 02:12 PM Thread Starter
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Thanks for the tip, I'll checkout my Tractor Supply today and see what is available. Asides from that, I have painted my stand a weathered gray look. Debating whether I should wrap plywood around the bottom or just keep it open with some sort of black curtain.

Bump:
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post #13 of 56 (permalink) Old 12-31-2016, 03:21 PM
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Don't forget you need a solid plywood top! I used that rubber mat under my tank it works well.
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post #14 of 56 (permalink) Old 12-31-2016, 04:18 PM Thread Starter
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For the plywood, does it matter what thickness I get?

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Don't forget you need a solid plywood top! I used that rubber mat under my tank it works well.
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post #15 of 56 (permalink) Old 12-31-2016, 09:07 PM Thread Starter
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I went with the 3/4 inch plywood and screwed it down nice and tight to my stand. As far as the foam topping, I picked up a package of foam insulation from Home Depot. I cut it to size for my stand and looks really good. It feels like a heavy Styrofoam, and keeps my top frame level (was still level with just the plywood). With that said, my stand if officially complete! Now, I need to buff and polish my tank and will be good to go!

Bump:

Bump:
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