Standard Hydroponics pH Up and Down Kit – 10 Ounce Bottle pH Adjuster for Hydroponic Systems, Coco Coir Even Soil.

Price: $16.91
(as of Nov 11, 2025 03:04:58 UTC – Details)

Product description

To maximize plant growth, the pH level of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of Standard Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are NOT pH buffered. However, some important exceptions do exist. pH can acidify to an unacceptable level when nutrient solutions are used with poor quality water, or pH unstable media, such as rockwool. High growth rates can also destabilize pH.

3 Types Of Growers That Can Benefit Besides Soil pH Watering From pH up and down

Large Scale Indoor Farming Growers

Standard Hydroponics runs our formula a bit higher then leading brands so you get longer lasting pH levels so you dont have to adjust as much.

Coco Coir or Soil Growers From Watering Plants and Checking water Run offs for pH

Grow media like coco peat needs about 5.8 to 6.3 ph and a flush of pH 6.8 to 7.0, as well as in soil you can read the slurry in soil ( MUD ) pH or check the water run off in tray to see what pH is.

use pH Meter for this

Basement Growers

If you use growing media – rock wool ror advanced growers then you can use pH up and down to yield better results with nutrients Intake to the plants.

Hydroponics, Soilless Grow Bags or Coco ~ 5.5 – 6.5 pH

For hydroponic growing setups (as well as soilless growing mediums like coco coir) an optimum root zone pH is between 5.5 and 6.5. This is slightly more acidic than the optimal root pH for growing in soil.

It’s a good idea to let the pH cover a range instead of always adjusting to the exact same pH number.

Our team of Ph.D have known and practice running our pH at 5.3 ph at grow stage then going to 6.8 as your flower seems to have less lockouts and more growth along with alot of aeration in the water.

4 STEPS TO BE A pH GROW MASTER First Calibrate Your pH Meter or Use Drops – Test Strips

PH is the measure of how “acidic” or “alkaline” something is, on a 1-14 scale. A pH of “7” is considered neutral, for example pure water has a pH of about 7. The measurements of pH has to do with the concentration of hydrogen in the sample. A grower can measure the pH of a water sample using special pH tester drops or a digital pH pen, like the one shown here my pocket.

Pipette

Grab Your Included Pipette.

Squeeze Bulb To Suck Up Solution Of The pH Up or DownBest To Wear Gloves / Keep Off Clothes And Skin.

For PH Down – Never Mix Nutrients or Supplements Directly With Each other Or You will Have A Major Bummer

For PH Down – 1 mL/gallon of water will generally reduce your pH about 1 point. That’s just a very rough estimate, but gives you a starting point. In imperial measurements, will reduce the ph pH by 1 point.

For PH UP

For PH UP – PH Up is not potent stuff! It actually has a very weak effect. Compared to PH Down you will need to add much more PH Up to adjust the pH by the same amount. With PH Up, depending on how hard your water is you need to add 2-4mL/gallon of water to raise the pH 1 point. In imperial measurements that’s 0.4-0.8tsp/gallon.

Soil ~ 6.0 – 7.0 pH

In the wild, Many plants prefers a slightly acidic soil environment. For soil an optimum root zone pH for plants is between 6.0 and 7.0, with the most time spent with a pH between 6.2 – 6.9. It’s a good idea to let the pH cover a range instead of always adjusting to the exact same pH number.

See which nutrients are best absorbed at which pH levels

➪ #1 BEST SELLER IN CANADA – STANDARD HYDROPONICS pH Kit For Hydroponic Growing Systems is Critical So You Can Adjust pH To Maximize Plant Growth And Nutrient Up Takes Since Not All Water is The Same Across The Land.
➪ ONE DROP GOES A LONG WAY With 35% CONCENTRATION – Having Hard Water Growing Plants Can Get Tricky And Very Annoying With pH Drifting, So We Run Our pH Formula ( Very Rich ) – This Allows Nutrients To Bind, So Your Plants Will Feed In The Grow Zone Longer.
➪ PRECISION IS KEY – You Also Get ( 2 ) Pipettes, One For pH Up One & One For pH Down That Are 3 ml Pipette Droppers with 0.5 mL Graduations So You’ll Always Know Just How Little Or How Much To Use.
➪ WE GIVE MORE – With ( 2 – 300 ml Bottles = 10 oz each ) Our 10 oz Bottles Give You 1000 More Drops or 50 ml Per Bottle Then Your General 8 oz Bottles – We Wanted To Make Sure Your Plants Are Well Taken Care Of When You Use Standard Hydroponics by Dave Ocean
➪ MADE BY GROWER FOR GROWERS – SAFER TO USE – We’re Not Just Changing The Rules We’re Changing The Game” Friendly. Simple. Powerful. NON CORROSIVE Only 4% Phosphoric Acid 25% Citric And 6% One Secret Additive And Pot Ash & Potassium Carbonate Makes Our pH Up | pH Down A Superior Safer To Use Blend, So You Can Use in Your Fish Tank And Soil As Well.