Quote Originally Posted by MimbresValley
"if the ppms are rising and ph dropping you are feeding to much. as the plants drink the water there is more nutes in it and the ph buffers are then lowering your ph as the water lvl drops.
it will be the exact opposite if you feed to low. your ppms will lower and your ph will rise."
Further clarification

These are not the only two options by the way, for instance you can have ppms rising and ph going up as well, which could be because of the water, or the nutrients you are using causing the ph to go up.

Like if you have root problems(pythium,etc.), your ph will generally go down regardless of what the EC/PPM is, brown algae will cause your ph to go up.
So there isnt just one set of rules, as there are lots of variables that come into play.:rastasmoke:
MimbresValley Reviewed by MimbresValley on . Hydroponics made simple, By MimbresValley Greetings, If any fellow NMMJ patient needs help, feel free to contact me here. (my yahoo sign in is listed under the about me/contact info.) There are many types of hydroponics, I will be touching on DWC today. DWC, also known as Deep Water Culture, & Death Without Cause. lol I will be demonstrating a very simple, and cheap hydroponic setup geared towards personal growers who do not need huge harvests, and also need a low initial cost. If this is your first time doing hydroponics, I Rating: 5