Grow fish and get your greens at the same time with this definitive do-it-yourself guideThe bottom line is, it is difficult to have too much oxygen in your fish tank. You will most likely hit the limitations of the ... Most fish will become stressed at a DO of3 ppm, and many will die at 2 ppm or below. How do you know how much DO youanbsp;...
|Publisher||:||New Society Publishers - 2011-10-11|