I am running it on my Sannies strains right now. 80 gals of 250 ppm tap water. Mixing as if a 50 gal res. But there is a bad yellowing going on my older leaves. I have also had nute lock 2 times. The plants are 8 weeks but due to there closeness to eachother in there tube from seed they are a little small. The power is going now and the kids are on a 4x8 table. I had used a few things at the begining. zym, root enhancer, cal mag plus, floraduo a and b. floralicious. since i had the what looks to be a mag def. i took out all only using the a and b and the calmag. the a and b seem to really make the ppm's go way up. anyone else use these products. i am dealing with the overwatering since the move to the first time ebb table. droopy is the word. and i did a foliage spray of the dark energy a the supernova. shit it's late. 1000 hortux. ebb and flow. hps for now in veg. no big mh bulbs. should i mix this way low. and please not the less is more saying. have you used it to give your help please. this product seems to have it's own things going on is why, so other nute lines may not be reacting the same is all. thanks for the help seeing there isn't much else out there. even if your don't know much about the duo but you are using it let me know what your perameters are. if i left out anything that would help you help me just ask. thanks ko kush, jackberry, anesthesia. took clones to sex them. not rooted yet.