that means your starting PPM is too high. it should be dropping along with the water level.When the plant use the water in DWC, the PPM/TDS get high
what's the water level?Its the water level
wrong.Your water level is going down, that will be why your ppm is going up.
see post 4. if water is dropping, ppm rising, ppm is too strong. in DWC, i like to see water dropping and ppm dropping daily. that means they are eating and drinking normally.Ok what then?
When I ran NFT I always replaced my reservoir weekly because I wasn't sure what nutrients the plants used and I liked to keep a stable ratio. I also would try to get it so that my TDS and water were close to equal. That's the sweet spot.see post 4. if water is dropping, ppm rising, ppm is too strong. in DWC, i like to see water dropping and ppm dropping daily. that means they are eating and drinking normally.
so in @Tosmtt situation, add RO water to the res to get the ppms down to a point where they are going down daily.
that is the holy grail of dwc for sure. i always felt more comfortable if my ppms were dropping somewher in the 10 to 50 ppm range per day. reassured me that they were eating.I also would try to get it so that my TDS and water were close to equal. That's the sweet spot.