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ppm for seeds in dwc hydroponics cannabis

Today, I will clear up some of the most common questions on the subject, such as “What is ppm?”, what a TDS meter has to do with all this, and some other info so that you will be empowered with new knowledge. The best part is that it’s really simple and there isn’t a lot to it.

EC meters measure the Electrical Conductivity of the water they’re testing. This reading is useful for…measuring the amount of solubles in your water!

What IS PPM?

If you’ve ever tried to learn how to grow cannabis online or via cannabis growing forums, you’ve probably seen a lot of abbreviations thrown around.

Now that we have our goals, we can make the proper adjustments to get the ppm to where it should be. Here are a few water-related issues you might into and some handy solutions.

In short, I’m confident that anyone can grow a beautiful set of plants from seed to harvest without ever needing to invest in a TDS meter.

These numbers are based on EC readings, .500 readings, TDS readings converted from EC or the common Hannah Chart:

Early Vegging 300 to 400

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I would like to offer a ppm chart as a rule of thumb or ball park target ppm, but each grow or garden is going to be different.

(this excludes the ppm of your water)

Early Blooming 750 to 950