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Biobizz Bio pH Down & Up

Regular price £8.51 £9.45 | Save £0.94 (9% off)
Tax included. Shipping calculated at checkout.
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SKU: 3850
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Biobizz Bio pH Down & Up

500ml / pH Up - £8.51
  • 500ml / pH Up - £8.51
  • 500ml / pH Down
  • 1 litre / pH Up - £14.36
  • 1 litre / pH Down

Biobizz Bio pH Down & Up


Biobizz Bio pH- (Down) and pH+ (Up)  are a safer and natural way to adjust/correct plants substrate pH to optimum levels for increased nutrient uptake and maximised results.

  • 100% Organic
  • All natural formulas - doesn't harm beneficial microbial life unlike other pH adjustment products
  • Can be used in every watering throughout both the vegetative and flowering phases
  • Can be used with any medium and on any crop type

From organic experts Biobizz and designed to be used alongside their organic range of nutrients and additives, Bio pH- (pH Down) contains citric acid and Bio pH+ (pH Up) contains humic acids, harvested from all natural sources making these ideal for organic growers as well as anyone who prefers not to use aggressive acids to adjust their pH, as is the case with most other pH adjustment products currently available on the market.

Unlike most other pH correction liquids out there, they won't harm any of the beneficial microbial substrate life and is designed to work most effectively in conjunction with the Biobizz organic range of nutrients, but would make a good choice for anyone growing organically, or anyone using soil or coco coir as their plant medium.

How to use Biobizz Bio pH- (Down):

  • Mix the necessary Biobizz nutrients and measure the pH. Apply 0.1 ml per litre of nutrient solution of Bio-Down to decrease pH by approximately 0.5 points.  Stir thoroughly for 10 seconds then measure the pH level again. Keep adding Bio-Down until you reach your optimal pH range - you're now ready to feed your plants.
  • Please refer to the feed schedule for more information (see downloads below).

How to use Biobizz Bio pH+ (Up):

  • Mix the necessary Biobizz nutrients and measure the pH. Apply 0.1 ml (per litre of nutrient solution) of Bio-Up to increase pH by approximately 0.1 points. Stir thoroughly for 10 seconds and measure the pH level again. Keep adding Bio-Up until you reach the optimal pH range - you're now ready to feed your plants.
  • Please refer to the feed schedule for more information (see downloads below).

Best Practices:

  • Shake well before use.
  • Use clean measuring instruments - do not put anything into the bottle.
  • Monitor and levels regularly - adjust accordingly based on crop type and growth stage.
  • Store closed in it's original packaging at a temperature between 5°C and 25°C.
  • Keep out the reach of children and away from food and drinks.

pH Bio- (Down) & pH Bio+ (Up) are a great way of keeping things organic and natural - we think this is a great option for organic growers, and anyone who grows in soil or coco. Highly recommended.



Delivery Information

Most orders are shipped within 24 hours.

Orders are currently shipped with Parcelforce (Express 24 service for standard and heavy/bulky items) or DPD Local (Premium next-day), a signature will be required on delivery. We have been shipping orders for 15 years and our courier choices are subject to change as service levels fluctuate.

All orders are shipped on a next day courier service – you will be informed via email or SMS the evening your order leaves us so you know to expect it the next day. On the morning of delivery you will get another SMS or email informing you of the expected delivery time.

If you have any questions on delivery please get in touch.

As the website calculates some charges by weight it is possible that shipping is not calculated correctly. We reserve the right to get in touch in these circumstances we will request the additional amount or offer to refund the order.

UK Delivery

Standard delivery to the UK Mainland addresses (excluding Scottish Highlands & Islands, offshore and N.I.) is charged at a flat rate of just £5.95 per order or £7.95 (for the premium next-day service), standard delivery (with Parcelforce) is free* for orders over £50.

*Large and/or heavy items attact a surcharge from our courier - shipping surcharges are calculated per item and are applied regardless of order value.

Non-UK mainland destinations are charged by weight.

International Delivery

Coming soon…

Collect in Store (Bristol)

We now offer a 'collect in store' option, which allows you to pay for goods online and collect from our Bristol store at time that suits you (within our opening hours).

The process is simple:

  1. place your order and pay online, select 'Pick Up' at checkout;
  2. receive an email confirming that the order is ready for collection;
  3. bring/show your confirmation email and photo ID to collect your order.


<li><a title="Biobizz Grow Guide" href="" target="_blank">Biobizz Grow Guide</a></li>

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