Twobrains, you must also consider Scotty had a very short vegg, and the nutes were changed out often (the plants took what they needed), with more plants, longer vegg, and extended times between rez changeout im sure there would be problems... I was thoroughly impressed by this One plant until I realized that it produced .77 gram per watt....Kuddos to Scotty on a fine plant ( he usually gets more per watt) .. Im just speaking from what happened from my personal observations of using novabloom in vegg... In reality the grow formula doesnt cost more, provides other elements and provides more N, the essential element for growth.