Gallons per tank?

Hey guys I was just curious, i've seen some posts on here where some people have known the actuall amount of water their tank holds. I have a 46 gallon bowfront with a 1.5 inch sand bed and in between 32-34 pounds of live rock, we'll call that 33 lol, anyway are their any calculators out there or does someone have a good guesstimate for me? Just wondering cause I just did a fifteen gallon water change, trying to get my nitrates below 20 ppm. They seem to be stuck, but i am using a darn canister filter still until my Remora skimmer with the MJ1200 gets here soon! Thanks!
 

PEMfish

Well-Known Member
The capacity of the tank has already been determined but the volume after rock and sand was the question. But yes, that is the formula to find the capacity in US gallons for rectangle tanks.
 
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