Dutch Pro PH +

Price Match
£6.92 - £27.71
Dutch Pro PH +
Price Match
£6.92 - £27.71
Want it delivered Tomorrow?
£6.99 Next working day  (3pm cut-off)
£4.50 Standard delivery 2 - 4 working days (free on orders over £50)
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Dutch Pro pH+

  • Dutch Pro's pH+ is commonly used for For raising the pH value / level, by adding small amounts of pH+ till the desired level is reached.
  • Corrosive.
  • Causes burn.
  • Do not inhale fumes.
  • Do not take internally.
  • Recommended pH level is 5.8 - 6.5.
  • Available: 1L & 5L sizes. 
  • Keep out of reach of children. 
  • In case of contact with eyes, immediately rinse eyes out with plenty of water and seek medical attention.
  • Wear protective clothing.


The pH of plants can change throughout their life cycle.

The pH range between 5.5 and 6.5 can cause plants to stop taking micro- or macro nutrients. This could lead to deficiency symptoms even though the solution contains enough nutrients.

To ensure that the plants continue to take all of the macro and micro nutrients, the pH must be constantly monitored.


Use a little bit of pH adjuster each time.

This is the best method to go about it. First, dilute some pH (1ml) into a container that holds approximately a litre. Then, slowly add the water to this container. After checking the pH after each small addition, you can stop adding water to the solution once the desired pH has been reached.



Be aware that both pH down and pH up can be extremely aggressive liquids, which are very corrosive for many materials.

Handling aggressive liquids should not be done without extreme caution. Any contact with the skin could require medical attention.

When working with strong liquids, we recommend that you wear gloves and safety glasses.

After using aggressive liquids, wash any equipment well.


Do not mix pH up with pH down. While pH up can be strong and alkaline, pH down can be very acidic. In neutralization reactions, the elements of these substances may recombine to form salt and water. The exothermic reaction can cause a great deal of heat, which could lead to an explosion.

Mainland England & Wales

  • Orders over £50 are Free Standard Delivery.
  • Orders under £50 are £4.50 Standard Delivery
  • Next Day Delivery £6.99

We ship parcels using DHL tracked Service. DHL will send you tracking information by email or text to inform you know when they will be delivering your parcel.

Small items are sent via a Royal Mail tracked service.

Our cut-off time for deliveries to leave us the same day is 3pm Monday to Friday.

In Stock: 1 - 2 Working Days

Out of Stock: 2 - 4 Working Days

Items Marked 'Out of Stock' on the website are not currently available from our supplier. Please call or email & we will update you when available.

If any item ordered is unavailable we will contact you by email or phone with expected delivery times. We only debit orders on dispatch so should you wish to cancel, we will do so.

Free Product Exchange:

We allow 30 days for a product exchange. On receipt of the original unused items we will return your exchange carriage free.

Terms and conditions apply.

Scottish Highlands / Northern Ireland

  • In Stock: £13.99 Delivery 1 to 2 Working Days

The cut off time for deliveries to leave us the same day is 3pm Monday to Friday.

We ship using DHL tracked service. DHL will send tracking information by email or text so you know when they will be delivering your parcel.

Small items are sent via a Royal Mail tracked service.

Free Collection:

Please arrange a collection time and date with our team if you wish to collect your order.