Today I got a noticed that my power will be out from 8am - 8pm. I got a heavily stock 150g, ultra light stock 265g, 40g planted with dithers, and 40g growout. Beside renting a generator, what other options do I have? Renting a generator is $150 a day and such a hassle to haul back after I am done. I was thinking of using battery air pumps with an air stone. Would one pump per tank be sufficient?