corvus..its a 50 gal tank..im using a yeast based injector(1 tablespoon yeast,1 baking soda,2/3 cups sugar,1.5 L water), i fed the airline tube to the intake of my power head and produces 3 bubbles per second. i think the best way to descirbe the plants is by weight, its bout 1/2 kilo. hope that...