Root Temps - How low do our "hydro" girls like to go

Temp swings can cause problems , thinking yours not swings much ,there's a lot of ups and downs when it comes to growing,you got to keep it simple keep nutes cool,pic a good system ,less work always better,feed proper,use your light properly ,keep humidity down ,enjoy I love it I bought my first ph pen this Xmas , 30 plus years growing ,gotta say not much difference in production 1/2-1 per

Alright Im probably going to get those mats I linked unless I can find a more suitable size. Id prefer 2 - 24" x 24" mats bu beggers cant be choosers.

I will aim for a root zone temp at 70 and be a proud canadian lol

Tried the fish tank warmer right in the 2 gallon feed solution I had mixed, started @ 56 degrees, ran the 100w heater submerged for 30 min, water temp is 71...

The lights have been on for 12 hours, and root temps are about 62, before waterring. data data data