So the ray2 24" and 20" have same par values? even though the bulbs are more spread out on 30" fixture?
The light will be hanging about 20" above the dwarf hair grass belem (I am told they can grow with medium par) (I am using mineralized top soil/flourite and dosing with excel). I may also put a glass top, which can block some light.
Is 30" ray2 good enough with 35 par at 20" depth
36" ray 2 with 50 par at 20" depth better?
Last edited by Soup12; 03-28-2013 at 10:01 AM.
Reason: new plant