Calculating total water volume

[Fishinwall]

65 gal tank
With 50 lbs Marco rock
2.5" sand

Approx what would the water volume be?

 

[dbl]

Try this...great little tool.

http://reef.diesyst.com/volcalc/volcalc.html

 

[Fishinwall]

Try this...great little tool.

http://reef.diesyst.com/volcalc/volcalc.html

Thank you