All, just thought I’d share. I’ve recently been converted to using Advanced Nutrients PH Perfect made nutrients along with a few of the additional products (micro, grow, bloom, voodoo, big buds, bud candy, and B52 ( thanks to the recommendation by @Lostgirl ).
I’ve been attempting to create an excel tool to calculate the total ppm’s of my feeding but every time I think I have the ppm of the individual products it’s proven to been inconsistent. I thought my ppm/ex pen was bad and replaced it. Same results.
Example: I calculated 400ppm, actual 300…. I tested the ppm of each product in 1 gal of water but combined it just never really added up to what I calculated. So, I emailed them this week inquiring into the ppm of each of their products. Below you will find their response. Thought perhaps others can benefit from the response. I like to math. The math is broken . That said, the past two runs I was within 20% accuracy……
Thank you for your email.
Please note in regards to PPM / EC measurements: When using our pH perfect line of nutrients there tend to be many other components besides dissolved fertilizer in the water. (eg. pH buffers, humic and fulvic acid, amino acids etc…)
Because of this an electrical conductivity (EC, TDS, PPM) reading can be difficult for the grower to properly ascertain and should not be relied upon as a measuring metric.
Instead of reading the PPM/EC we recommend following our nutrient calculator, starting off at 1/4 strength of your base nutrient for small clones and seedlings, gradually working your way to full strength as the plant matures over a period of 3-4 weeks. Which can be seen at Downloadable Feeding Charts by Advanced Nutrients
If you encounter any issues throughout the grow feel free to reach out to us at the time.
Regards
Advanced Nutrients Grower Support Team