Hey there guys. If I were to get a pet like a ginnie pig or something for CO2, would it be enough? And more importantly can any pet not attract mites? I just want to get 2 clones and use 1 light. Build a special 4x3x6 cabinet. I'ld put the cage beside the cabinet where there is an intake fan (it would be a decent sized fan, maybe enough to suck the fur off the poor animal). If I can make some of my money back within the first grow, I'll buy more lights and stuff. If not I'll try again. Personally, it just seems unnatural to create CO2 just for photosynthesis.