cpsTN
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- Jul 11, 2014
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- Location
- Murfreesboro, TN
- Country
- United States
- Display Name
- Charles Sands
How do you know how much gravel (by pound) for the floor of the tank you are using? is there a formula for cubic inches? I am setting up a 40g tank, measuring outside 18x36.
Charles Sands
37129
Charles Sands
37129