Water PPM Question

freshed05

Member
Hi all,
Kind of a silly question for the smart people I'm sure. If my water out of the tap is about 100PM. With my General Hydroponics 3 blend nutes + calimagic it tests around 450-500ppm ready to go. This is usually all the guidelines I've researched etc. for dosing. So the question is simply..... should I be doubling the amount of nutrients to hit the 800-900ppm mark? My plants are growing healthy but they aren't monsters by any means. Nor do they have any major signs of nute burn. Maybe 1 or two small spots on maybe 1 or 2 leafs. Honestly almost nothing.
This batch specifically is autoflowers.

Thank you in advance!

20210305_224326.jpg20210305_225012.jpg20210305_225018.jpg20210305_224326.jpg20210305_225012.jpg20210305_225018.jpg
 

Beehive

Well-Known Member
The maximum ppm listed on the chart is for all the extra stuff you can buy.

The basic ppm of the basic three. Micro, grow, and bloom. Cali-Magic. That's all the ppm you need.
 

freshed05

Member
The maximum ppm listed on the chart is for all the extra stuff you can buy.

The basic ppm of the basic three. Micro, grow, and bloom. Cali-Magic. That's all the ppm you need.
So your saying my PPM is fine for just using the 3 blend main mix?
 

Beehive

Well-Known Member
So your saying my PPM is fine for just using the 3 blend main mix?
Yes. Mix it exactly as the chart says. Measure a gallon of water.

Whatever the PPM, which is usually 100-150 plus of the lowest listed ppm. Is all the fertilizer you need.

I know you use tap but with RO water. Using the basic 3 and Cali-Magic. Your max ppm won't be over 750. Through the entire chart/grow. Mostly you see ppm in the 600's.
 
Top