If your using Lucas Formula, that means you use Grow, Micro, Bloom, Cal-Mag and H2O2, nothing more. If you are doing Lucas, stick to that, just G/M/B/CM/H2O2.
If you want to combine different manufacturers stuff, it means that your just being cheap and trying to save money by using up old shit in your cabinets. Dont do this. First, nutrients DO have a shelf life! Older than a year? TRASH! Second, nutrients cant really be mixed together with other manufacturers nutrients. Each manufactuers stuff is different in each bottle. Some do different things, some do a combination of things.
If you are new to growing and you dont know the differences in what nutrients are what -- Dont mess around with it! Learn to grow first, get it right, and then have an experimental plant here and there for fun. But lets focus on gettin the job done first, right?
If you do mess around, you have a strong probability of overfertilizing your plants, damaging them short and long term, stunting yields, all to save a few bucks using old nutrients.
