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Old 02-05-2011, 06:24 PM   #1
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Lightbulb Can you use concrete blocks as an aquarium stand?

I'm currently upgrading to a 75G I just picked up last night for my cichlids that are currently in just a 30G. I already have salt water tank is in the living room, and I'm putting the 75g in what I call the man cave right now lol, the 2nd room to my apartment that only has a computer desk and a couple of other things because it's just my girlfriend and I.

Anyways, although the tank is going to look great, I'm not too worried about getting a stand that looks great, already have one for the other tank to store stuff in. I've seen my LFS have various large aquariums on concrete blocks under both sides and seem to do alright. Are there any issues in the long run with doing this? Should I put something softer on top of blocks before I begin to set up everything? Is this a good idea? Looks like a great cheap way to stand a tank on.

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Dave


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Old 02-05-2011, 06:39 PM   #2
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Maybe cinder blocks would be better, and then get a piece of wood to put on top of them, so you don't tear up your tank.
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Old 02-05-2011, 06:46 PM   #3
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My fault, I actually did mean cinder blocks. The LFS were using cincer blocks. They weren't using wood but that's a good idea. It would probably have to get a very thick piece then so it doesn't bend or anything.
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Old 02-05-2011, 10:43 PM   #4
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Yeah, I would use the cinder blocks on the ends and more in the middle, then try to get a piece of plywood or maybe some 2x4's nailed together to fit right under the tank. 2x4's would add more support than the plywood.
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Old 02-06-2011, 12:09 AM   #5
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Yeah, I would use the cinder blocks on the ends and more in the middle, then try to get a piece of plywood or maybe some 2x4's nailed together to fit right under the tank. 2x4's would add more support than the plywood.
I'm not an engineer, but I would be worried about instability with blocks on just either end and the middle. I would make a semi-solid block of them, me, and then maybe use the wood on top as a unifying "tabletop" surface.
How did the lfs have them set up? Same size tank? Just copy them, I guess, because surely it is working out for them.
Anyway, it's a really efficient idea, and you could even drape a sheet, tablecloth, or etc. over it if you didn't want the cinder block look of it.
I thought you could paint them too, and when I googled I found this.
Build a Strong, Inexpensive Aquarium Stand « Random Bits of Projects
It looks so nice!!
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Old 02-06-2011, 03:13 AM   #6
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My parents had their 75 gallon on cinder blocks and 2x4's.
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Old 02-06-2011, 09:16 AM   #7
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I would just be worried about bumping into it and causing it to fall... I would also not have them just under the ends, I would put at least 1 additional stack in the middle.
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Old 02-06-2011, 09:29 AM   #8
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cinder blocks at the 4 corners of a 75 gallon tank will be very sturdy. a standard block is 8x8x16. that means that 32 of the 48 inches will be covered. no need to put anything in the middle, as the middle of the tank doesn't een press against anything. it's the edges of a 75 that are supported.
i would use 3/4" plywood on the top of the blocks, but this would be very sturdy. once it's full of water- you are not going to move it!
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Old 02-06-2011, 09:40 AM   #9
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OK let's talk. I was in the pet shop business for about 20 years. When I first started the store, I couldn't afford high dollar racks, so I used concrete block. There is no such thing as cinder block anymore. They are all made of concrete. They are one of the strongest stands that can be built. Remember to stack the block so you look down the holes(they are the strongest that way) If you like(I would strongly advise) to put shelves out of 3/4" plywood, or 2x10's running length wise.(great way to make bookshelves), It also adds stability. All tanks are supported from the ends. But if you feel safer add a middle column of blocks. On the topput a piece of 3/4' plywood, and a piece of foam on top of that. You can get the styrofoam in the building section of Home Depot, or Lowe's(don't cost much, maybe 10 bucks) The foam is a good thing on any stand, as it takes away any slight tweak in the stand. MAKE SURE THE STAND IS LEVEL, FRONT TO BACK, AND END TO END. If you don't have a 4 ft. level, set a straight edge across the top(something you know is straight.) and set the torpedo level on that. A torpedo level can be picked up at the dollar store, for about a "DUH".
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Old 02-06-2011, 02:40 PM   #10
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cinder blocks at the 4 corners of a 75 gallon tank will be very sturdy. a standard block is 8x8x16. that means that 32 of the 48 inches will be covered. no need to put anything in the middle, as the middle of the tank doesn't een press against anything. it's the edges of a 75 that are supported.
i would use 3/4" plywood on the top of the blocks, but this would be very sturdy. once it's full of water- you are not going to move it!
I just came back from home depot with everything I need, for 28 bucks too woohoo! The advice given to me here is almost, if not identical, to an article I just found on the internet. You have the blocks, then 3 2x4's on top, plywood on top of that, then the tank. At first I was a little concerned but I've just set it up, no tank on it yet but I can tell it looks like I'll be alright.

Thanks everyone.
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