Your plants will always tell you want they want.Thats what i love about it.Its so easy to fine tune them in DWC,you can add more water on the fly and lower the PPM.bump up
calmag if they are showing issues,tweak the N,P,K on the fly.The results are instant.You can see the changes within a day.Its not like soil where its harder to tune the plants,
In DWC the PH is constant.You can get it on the NOSE unlike soil.Soil is a crapshoot unless you have a very expensive soil tester or send samples into the co-op
In DWC you set the PH and thats where it sets.PH is never an issue at all.Also adding all that oxygen to the root zone just makes plants explode.
Honestly the hardest part of growing DWC is having to deal with explosive plants.Training is a bitch cause they grow so fast.Stretchy plants in soil will double there size in DWC.I doubt i will ever go to any other method cause i have worked so hard to perfect my system and all the pipes and hoses i have figured out how to make everything work perfect for me.
A top off res is a must to monitor how your plants are eating.YOU have to check the system PPM and check the PPM of the top res.Compare the numbers.If your top off res is HIGHER PPM than your system than your plants are eating more than your giving.Like i said your plants tell you and your PPM and PH pens are your best friend.Dont skimp on cheap ones.I got expensive ones and they have paid for themselves 100 times over.