I've never used DNF, but I know others that have and I don't recall hearing anything necessarily bad about it. I wouldn't necessarily blindly follow the recommended dosing, however. 100ml for 20lt sounds a pretty high (that's one teaspoon per liter), but it all depends on the concentration. Use a TDS meter to make sure you aren't over-doing it.

Also, 6.5 PH is almost too high for hydro. Try to keep it just under 6.0 (5.8 or 5.9), since the PH range determines how much and which nutrients are absorbed. 5.8-5.9 is the sweet spot for hydro. This one change may increase your yield by itself.

Anyway, sounds like you're doing fine. Don't feel lonely, that's what this place is for! And post some pics of your setup...
SecondNut Reviewed by SecondNut on . No one to talk too and I wish i had input,, please I follow the golden rule of not talking about my "hobby" to ANYONE but after 2 years I would like some outside opinions. I built a room 6' x 6' with a 7' ceiling in my basement and hooked up a 4" vortex fan with a dimmer switch to my toilet stack for venting and the temps run 86 to 89f during the day and low 70's at night. Inside this room I also built a cupboard just big enough to fit my mother as well as a rubber maid 20 Lt tote I cut 6 holes into for 6" mesh baskets and installed a pump Rating: 5