Sand for Fluval Flex 9g - The Planted Tank Forum
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post #1 of 2 (permalink) Old 12-15-2018, 05:33 PM Thread Starter
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Sand for Fluval Flex 9g

Okay guys, I suck at figuring these things out.

I have a Fluval Flex 9g that is going in my boy's room. It'll be a planted tank with some small Nano fish. I'm trying to figure out how much sand I need to buy for it. I like a "deeper" substrate, not the really thin one, so let's err on the side of more, but how much do you all think?

I bought 15lbs of the Fluval Black Sand and it's already here, how much more do you think I need if any? The bag looks a little small to truly get me a nice deep sand bed.

Thanks in advance!
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post #2 of 2 (permalink) Old 01-04-2019, 07:22 PM
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I just bought the 32.5 gallon for my kids, and trying to find a sand to use in low tech setup. I the past I have always used titan moon sand black, but cannot find it anymore.

Are you happy with the Fluval Black Sand? The calculator I used said I needed 80lbs for 3 inches deep.

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