Ro water and good Ph chems will help keep it down. There are some buffers in the nutrients to help stabilize Ph but in hydroponics it's normal to check and balance it twice a day. Most don't have as much of a problem because they use larger rez so there is more of everything to keep the ph in check but in your small waterfarm there is not as much water or nutrients so there are less buffers.

So in a waterfarm it;s normal to adjust the Ph twice a day.

Welcome to hydro.
Zandor Reviewed by Zandor on . Having to adjust ph twice daily Hi Im growing in a couple of bubblers (waterfarms) Im trying to maintain a ph 0f about 5.8,but to do this i have to add some ph down twice a day everyday, Im not lazy but this just isnt practical for me,im not near the plants all the time and this is getting to be more trouble than its worth. Is their anyway to keep the ph right without adjusting twice a day? Im useing A.N 3 part grow,and have switched over to tap water with a starting ph of about 7.5 Rating: 5