Aquaponics: Vegetables and fish protein – family size

We need 1.5 cfm of air @ 40” H2O for each 100 pounds of fish, so we need 24 times 1.5, or 36 cfm of air @ 40” H2O. We divide our 8,000 square feet of trough by a width of 4 to find out we have 2,000 lineal feet of trough, and we need 1.5 cfm of air @ 10” H2O for each 100 feet of this, or 1.5 times 20, which is 30 cfm @ 10” H2O. ................
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