what do you keep you pH at?

...when i first started DWC the biggest mistake i made was not pre soaking and washing off my hydrotron. You will get huge pH fluctuations without clean and pre pHed medium.

....I also recommend using a supplement like Aqua sheild, hydrogaurd, or hydrozyme. These supplements keep your resivour clean of any shit that might get into your resivour...

Also res. water temp is important. if Your water is to warm the roots wont like it and it will stunt and fuck up your grow.

Bubbles are VRY important to DWC... the more bubbles the better (You can not have to many bubbles) Micro-Pore diffusers make the most//tiny bubbles out of anything iv seen (those round or straight blue pores air stones SUCK and will clog up after a few runs)

...Another thing you have to remeber is with soiless growing there isnt that pH buffering capacity that soil has, so many you see small changes starting uslly its going to get worse before it gets better unless you do something about it. NO MORE WELL ILL JUST WAIT TELL TOMORROW AND SEE WHAT HAPPENS. if you see yellowing in the leaves after a res change, DO SOMETHING ABOUT IT! ether redo your res change or take out half of the water and add straight water cause your nute solution is to strong...dont wait tell your plants look like shit!