If you have 2 different strains in the same tub, you might run into issues. One strain might be a heavy feeeder, while the other likes small amounts of fertalizer.

This can become a problem during flowering, because it's when you bump up your PPM's and use the most nutrients. You could burn the shit out of one strain, while the other strain is still getting underfed.



whats your PH? If you check PH and it has gotten more acidic, the plants are using more water than nutrients. If you check you PH and it has risen since the last time, the plant is using more nutrients than water. This kind of tells you whether to use more nutrients, or to tone its down a bit. I like to push plants until they burn a little at the tips, thats when i know im feeding them as much as they can take.

Also, its not neccessary but a Cheap PPM pen would do you some good. Its the only way to really know how concentrated your solution is.