Thanks in advance. I’ve read beaucoup today on the importance of proper PPM’s, and have questions. My well water tested out at 8.3pH with 317ppm. I realize the pH will need to be lowered.
I’ll be using FFHF soil and the 3 liquid nutrients which came with a feeding guide/schedule.
IF I bring the pH to 6.5, and use the recommended dose of nuits, should I expect the ppm to come up to the target number stated on the schedule?
Also, does pH down effect the calcium, minerals, already in the water?
Also,also, I’m low on Big Bloom, is there a viable substitute? Costs almost as much for the one,as all three, and I have plenty of the others. Thanks again
Ok. At 317 ppms (no telling what all that consists of) if ur schedule calls for 600 ppm, ull want the total to be 917 ppms to feed at recommended strength.
To my knowledge, ph doesnt effect ppms, only the plants ability to uptake those solids from ur respective medium.
Im sure there are replacements for Big Bloom… the question is how well will those replacements play with ur other nutes and nute schedule. Essentially they all are NPK, its just they are made of diff stuffs… let me see if i can find a decent alternative. Sorry no definitive answer
2 Likes
There’s usually a pretty good window between too much and not enough nutrients. As to where you will see major problems anyway. I would go with plan you have and adjust as plants tell you. The fox farm schedule is pretty aggressive, so don’t feel shocked coming in under either.
1 Like
Your meter is likely on the .5 scale. Here is a fox farms schedule with ppm adjusted to the .5 scale.
3 Likes
Thanks Bobby! Saw this earlier somewhere else and bookmarkd. Always getting questions bout ff schedule. This is the one we need
2 Likes
300 to 900 from wk2 to wk3!!! Holy shat batman!!!
1 Like
That’s why all those FF plants be looking indica green 
just kidding guys!!
1 Like
I’ve never fed within the first 5 weeks of veg so not sure how that works out. The other thing that has to be accounted for is the addition of all the micro nutrients which not a whole lot of people use. I need to mix up 2 tbsp of big bloom and 2 tsp of grow big and see what it really comes out as.
1 Like
I just saw a video today that explained ppm and it’s importance. Basically, if you use r.o. water, it has a very low parts per million (ppm) count of minerals, and random unknown, and possibly, unwanted contaminants, crowding out desired nutes that could be absorbed. With higher numbers, less is delivered.