BioBizz Bio pH Down

Title: BioBizz Bio pH - 250ML
Sale price£4.99



Say “hello” to the newest member of the Biobizz family. Called Bio pH-, it has been designed especially for the organic farming sector. Biobizz Bio pH- is an aqueous solution made of citric acid and found naturally in different citrus fruits, such as lemons.

Correcting pH in a natural way is essential for plants to absorb the maximum amount of nutrients. The natural formulation of Bio pH- enables fast pH adjusting of any type of substrate and for any type of crop, without harming the soil micro life.

It is designed to work perfectly with the Biobizz nutrients and can be used in every watering. It is suitable to be used during both the growing and the flowering period.


  • Can be used both during the vegetative and flowering periods, in every watering, and in combination with every Biobizz substrate or liquid product.
  • Doesn’t contain any strong acids. This means that this 100% organic pH regulator doesn’t harm the substrate micro life.


  • Mix the necessary Biobizz Products.
  • Measure the pH of the mix.
  • Apply recommended quantity of Bio·pH-, stir for 10 seconds, and measure pH again.
  • If pH requires further adjusting, repeat point 3 until desired pH value is reached.


Can I use Bio·pH+ and Bio·pH- at the same time in the same watering recipient?

Of course! The optimal range of absorption of nutrients is 6.2-6.5 and we can use both Bio·pH+ and Bio·pH- to reach it according to our water base. We can also use both products if we have been regulating and we need to go back.

Do Bio·pH+ and Bio·pH- have the same concentration and effect?

No, Bio·pH- is more concentrated than Bio·pH+. The effect of Bio·pH- is stronger, as 0,1 ml of Bio·pH- in 1L mix lowers the pH by 0.5. Whereas, 0,1 ml of Bio·pH+ in 1L mix increases the pH by 0.1

Can Bio·pH+ and Bio·pH- be used on the substrate?

No, Bio·pH+ and Bio·pH- are meant to be used in liquid nutrient mixes, not on substrates or dry amendments.

Is it necessary to use both Bio·pH+ and Bio·pH-?

Not always. Sometimes a mixture of nutrients will require lowering the pH, and at other times we will need to increase it. In any case, we can use Bio·pH+ and Bio·pH- together in case we apply too much and need to go back to reach the optimal pH range.

How should I store Bio·pH+ and Bio·pH-?

Bio·pH+ and Bio·pH- should always be kept away from direct sunlight and in a cool, dry, and closed place. It is important to close the bottles very well in order to avoid alterations in the products since they are 100% organic products and have very controlled and strict pH values.

Is there a limit to the uses of Bio·pH+ and Bio·pH- in each mix?

There is no limit to the use of Bio·pH+ and Bio·pH-, as they do not affect the quality of the nutrients or the effectiveness of the mixture. We can use them as many times as necessary to reach the optimum pH range.

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