In-Reply-To: <199801140848.DAA20561 at acme_actwin.com>
At 2000 nanomoles per m2 per second you have;
in a 4' x 2' tank
2 umoles x 8/27 x 3600 x 44 = 94 mg CO2 per hour assuming 100% cover.
To conver to your tank size take the square footage of your tank, divide
by 8, and multiply by 94.