BioBizz Bio pH-

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Product Name Qty Price
BioBizz Bio pH - 250ML
BioBizz Bio pH - 500ML
BioBizz Bio pH - 1L
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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 during 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 of uses of Bio·pH+ and Bio·pH- en 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.

Delivery & Returns
Free Delivery
We are pleased to offer free standard shipping to UK Mainland on all orders over £65.00 *Heavy item surcharges are still applicable.
Next Day Delivery
In a hurry for your order? Order before 1 pm Mon - Thurs for next working day delivery *subject to stock availability T&C's apply.
Different delivery address?
Do your goods need shipping to an alternative address? If so, paying by bank transfer gives you the freedom to have them delivered to anywhere in the UK.
Free Returns
Faulty or damaged item? No problem, contact us on 0800 038 7100 or email customer service and we can arrange a free collection.
Plain Packaging
All parcels, no matter how big or small, are dispatched in plain packaging using black wrap that's secured using 'fragile' tape.
How to Pay
Credit / Debit Cards
We accept all major credit and debit cards (excl. American Express) All transactions are processed using a secure server via SagePay. Please note: When paying by credit card we can only ship to the card statement address.
Simply select this option at checkout if you prefer to pay through PayPal. Please note: When paying by PayPal, we can only ship items to the account owners confirmed address.
Banks Transfer
Select the option for Bank Transfer at checkout if you wish to receive your item anywhere within the UK. Please use your order number as payment reference.
Click & Collect
Collect your online orders in as little as under an hour*! Simply pay online, choose location & collect in-store for free! Available from Manchester & Huddersfield (*subject to stock availability).
Brand BioBizz

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