All FAQs

What is the difference between PPM, EC and TDS?

These are acronyms used in the hydroponic industry related to measuring nutrients or “salts” in the water or mediums that plants grow in. TDS stands for total dissolved solids, PPM stands for parts per million, and EC stands for electrical conductivity. Most meters can be set to measure your preferred method.

Hydro 101

Featured Topics

Roots issue

The Roots Issue

NPK issue

NPK ISSUE

Grow Outside

Grow Outside

Nutrients FAQs

Nutrients FAQS

Roots FAQs

Roots FAQS

All FAQs

All FAQs