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Nutrient Control

Controlling your hydroponic nutrient solution successfully is the difference between an OK harvest or a bumper crop. In nutrient control you will find products that:

  1. Monitor and control your nutrient pH level : (5.8-6.2 for hydroponic systems and COCO).
  2. Monitor your nutrient level in EC : (keep in the range 1.0-2.5 with 1.6/1.8 being a good all-round level to maintain in full growth).
  3. Monitor and control your nutrient water temperature : 18°c to 20°c is fine.

Please note :  Several chemicals involved in nutrient control are concentrated alkali and acid based products which can cause skin irritation and even burning. Always handle pH Down and pH Up products with care and never ever mix them together.


Essentials pH Meter

CODE: CKR6835

£49.99
Essentials pH Meters are used for measuring the pH value of your nutrient solution. These handy meters are very easy to use simply turn on the unit and dip the probe in your nutrient tank, the digital display will then tell you your ph level.
4999 points
250 points

Essentials Professional pH Meter

CODE: RBC2978

£59.99
Essentials Professional pH Meters are more advanced meters than the standard versions which are waterproof, more reliable and feature the ability to replace probe heads rather than the whole meter when they wear out.
5999 points
300 points

Essentials EC Meter

CODE: KJM1346

£49.99
Essentials EC Meters are used for determining the EC (electrical conductivity) or strength of your nutrient solution. These handy meters are very easy to use simply turn on the unit and dip the probe in your nutrient tank, the digital display will then tell you the strength of your nutrients in EC.
4999 points
250 points

Essentials Professional EC Meter

CODE: LXK2296

£59.99
Essentials Professional EC Meters are more advanced meters than the standard versions which are waterproof, more reliable and feature the ability to replace probe heads rather than the whole meter when they wear out.
5999 points
300 points

Essentials Meter Store

CODE: ACR3556

£3.99
Meter Store is a very useful product that prolongs the life of your essentials pH and EC meters. To use simply put a small amount of meter store in the probe cap lid whenever the meter is not in use.
399 points
20 points

Bluelab Nutrient Truncheon

CODE: EBF7131

£84.95
The Bluelab Truncheon is the world's favourite nutrient meter, having proven itself indispensable to hydroponic gardeners everywhere. The Bluelab nutrient Truncheon is easy to use, all you do is place it in the solution and it automatically takes a reading in EC or PPM. 5 year guarantee.
8495 points
425 points

Bluelab pH Meter

CODE: EMZ4212

£139.95
The Bluelab PH Meter is an accurate way of measuring the pH of your hydroponics nutrients solution. To take a ph reading simply place the Bluelab PH Meter probe into your hydroponics nutrient solution and the ph reading is displayed on the screen.
13995 points
700 points

Bluelab pH Meter Replacement Probe

CODE: MBN8469

£59.95
Replacment pH probe for the Bluelab pH meter.
5995 points
300 points

Trident pH, EC and Temperature Meter

CODE: VHH1434

£105.99
The Trident is an all in one pH, EC and Temperature Meter.
10599 points
530 points

Fertometer

CODE: SYF4659

£32.99
If a potted plant is not growing or flowering well, then this is often caused by wrong fertilisation. The fertometer solves this problem, simply push the probe into your soil and it will light up either red (too much nutrient, amber (not enougb nutrient) or green (nutrient level ok).
3299 points
165 points

Digital Combo Nutrient and Growroom Thermometer

CODE: PSC3715

£9.95
Digital Combo Nutrient and Growroom Thermometers take two sets of minmax temperature readings, one from the unit situated in your grow room and a second from the external probe which you place in your water source.
995 points
50 points

250ml Essentials pH Down

CODE: RRL5765

£3.95
250ml Essentials pH Down decreases the PH value of a nutrient solution. To use Just add pH down to your nutrient solution (after you have mixed up your nutrients and additives) until you reach the desired pH level (5.8 to 6.2 for hydroponics and COCO).
395 points
20 points

250ml Essentials pH Up

CODE: TKR1216

£3.95
250ml Essentials pH up increases the pH level of your nutrient solution. To use Just add essentials pH up to your nutrient solution (after you have mixed up your nutrients and additives) until you reach the desired pH level (5.8 to 6.2 for hydroponics and COCO).
395 points
20 points

1L Essentials pH Down

CODE: KMX5587

£9.50
1L Essentials pH Down to reduce the pH level of your nutrient solution.
950 points
48 points

1L Essentials pH Up

CODE: GPJ1817

£9.50
1L Essentials pH Up to increase the pH value of your nutrient solution.
950 points
48 points

1L Canna pH Down Grow

CODE: HFZ8569

£8.90
Reduces the pH value of the nutrient solution during the vegetative period. PH down grow uses nitric acid as plants have a need during vegetative growth for nitrogen.
890 points
45 points

1L Canna pH Down Bloom

CODE: DJK2658

£9.99
1L Canna pH Down Bloom reduces the pH value of the nutrient solution during the bloom period. PH down bloom uses phosphoric acid as plants in bloom have a need for phosphorous.
999 points
50 points

1L Canna pH Up

CODE: XSR5695

£9.99
1L Canna pH Up raises the PH value of your solution, you don't have to take into account the phase that the plant has reached when raising the pH.
999 points
50 points

1L Canna Organic pH Down

CODE: RDW2338

£10.99
Canna organic ph down is an alternative means of ph adjustment that uses citric acid instead of chemical alternatives. This organic acid contains 50% citric acid.
1099 points
55 points

250ml Buffer 7

CODE: FBL8853

£2.99
250ml Buffer 7 is a calibration fluid for use with digital pH meters. Buffer 7 has a constant pH value of 7 which enables digital pH meters to calibrate.
299 points
15 points

250ml Buffer 4

CODE: CSY2725

£2.99
250ml Buffer 4 is another calibration fluid for use with the BlueLab pH meter. The only pH meter we sell that requires buffer 4 is the bluelab digital pH meter, you do not require buffer 4 to calibrate the other meters we sell.
299 points
15 points

250ml Calibration Fluid 2.8 EC

CODE: ZBT6517

£2.99
250ml Calibration Fluid 2.8 EC for recalibrating digital EC meters. Calibration fluid has a constant EC value of 2.8 which enables digital EC meters to calibrate.
299 points
15 points

1L Buffer 7

CODE: NKP6583

£9.99
1L Buffer 7 is a calibration fluid for use with digital pH meters. Buffer 7 has a constant pH value of 7 which enables digital pH meters to calibrate.
999 points
50 points

1L Buffer 4

CODE: KCB2461

£9.99
1L Buffer 4 is another calibration fluid for use with the BlueLab pH meter. The only pH meter we sell that requires buffer 4 is the bluelab digital pH meter, you do not require buffer 4 to calibrate the other meters we sell.
999 points
50 points

1L Calibration Fluid 2.8 EC

CODE: RHJ6244

£9.99
1L Calibration Fluid 2.8 EC for recalibrating digital EC meters. Calibration fluid has a constant EC value of 2.8 which enables digital EC meters to calibrate.
999 points
50 points

5L Essentials pH Down

CODE: GHZ5832

£29.50
5L Essentials pH Down to reduce the pH level of your nutrient solution.
2950 points
148 points