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Old 01-18-2008, 10:07 AM   #1
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Question Max Weight of Substrate to Use And Be Safe?

I am getting my new 90 gallon tank ready to go. I am looking to switch to sand. I bought 100 lbs of pool filter sand.

I currently use 86 lbs of gravel in my 45 gallon bow tank.

My question is how much is too much weight to put in my 90 gallon or will I be ok putting 150-200 lbs of sand.

I know 100 lbs isnít going to be enough to make it at least the recommended 1.5" in deep substrate. And I donít want to put too much in and find it all in the carpet. LOL
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Old 01-18-2008, 01:21 PM   #2
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90 gallons of water weighs about 720lbs. I can't imagine that 200lbs of sand is gonna be that big of a deal.

I think 100lbs of sand will be plenty. My friend used 100lbs in his 75gal (same footprint as a 90), and it looks fine.
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Old 01-18-2008, 01:50 PM   #3
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Originally Posted by evercl92 View Post
90 gallons of water weighs about 720lbs. I can't imagine that 200lbs of sand is gonna be that big of a deal.

I think 100lbs of sand will be plenty. My friend used 100lbs in his 75gal (same footprint as a 90), and it looks fine.
Thanks for the input.
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Old 01-18-2008, 05:49 PM   #4
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You will be fine. Tanks are made to hold a ridiculous amount of weight inside. I can't find the link right now, but every so often someone posts pics from a tank manufacturer with a 90 filled with bags of lead shot. This is what they design em to take.

Jeff
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Old 01-18-2008, 08:16 PM   #5
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I have 125 lbs in my 75 gal tank and no problems for over 2 years.
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