I use a nute package called SuperNatural. It really does a great job.
Supernatural Terraponic

One thing I've found to work really well is to take a daily feeding/watering schedule and break it into two parts. If it calls for 1tsp of a nute per gallon of water, I'll do 1/2 tsp in 1/2 gallon of water twice a day. Sure does seem to make a difference. In a couple days I'll know the dry weight. Should be well over an ounce per plant.
RoundEye Reviewed by RoundEye on . My Bud Pix. Cropped This Morning Well I must say this is by far the best grow I've done. I've yet to see the dry weight of course but the buds look lovely. I have learned one thing this time, I hate trimming. Have a look at these pix and tell me what you think. The images are rather large but well worth it in my opinion. (I have no idea what strain it is) Rating: 5