ph issues in bubbleponic

[leatherware12]

im having trouble balancing the ph of my 10 gal bubbleponic system, i mix 8 gals with 4 tsp of grow nutrients and when i test the ph its at 6 but after a few hours the ph starts to rise so i add ph down and it will lower but only for a very short amount of time i neeed to know a way to maintain a solid 5.8 to 6.0 ph in my water. any suggestions will be greatly appreciated

[Gemini61782]

Hey Leather, couple things to consider1)the plastic your res is made of. Some types of recycled plastics have adverse effects on plants by releasing toxic sweat, at least that's how I understand it. Another thing, is your res completely light proof? and what kind of nutes you using? Also tap water or Reverse Osmosis?

[leatherware12]

yes the res is completly light proof and im using tap water that has sat out for 24 hours. what would happen besides algae if res is not completly right proof?

[Strain Hunter]

I get that when my res isnt mixed through enough, after adding your nutes take your time and realy mix the sollution wile adding ph down to get the desired level and keep mixing. To mantain my PH of 5.7 is prity easy after the first setting, i check the PH daily but 99% of the time theres no need as it only ever goes up .1 to .3 every 3 days. Lots of stiring and mixing on you fresh sollution should help.

[Hydroguy]

agree with everything above, but also in the first couple of weeks rockwool will raise your ph. to combat these sock rookwool at ph 5 for 24 hours