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-
Nutrients & Additives
- Luther's Choice Bioponics
- Luther's Choice Bioponics: Additives
- Athena: Additives
- Athena Nutrients Australia
- Hy-Gen
- Hy-Gen Additives
- Terra Aquatica/General Hydro
- Terra Aquatica/General Hydro: Additives
- Green Planet
- Green Planet: Additives
- Mills
- Mills: Additives
- House & Garden
- House & Garden: Additives
- Growth Technology
- Growth Technology: Additives
- Professor's
- Professor's: Additives
- Flairform
- Flairform: Additives
- Canna
- Canna: Additives
- Ozi Magic
- Terpinator
- Ezi Oil
- Superthrive: Additives
- Plant Mechanics: Additives
- Plant Success: Additives
- GrowHard: Additives
- Mammoth: Additives
- Southern Star LED
- Lutherās Choice Bioponics
- Lighting (Lamps, Ballasts, LEDs, etc)
- Hydroponic Grow Lights
- Grow Tents
- Complete Hydroponic Kits
- Growing Media & Substrates
- Water Control (Instruments, Solutions, etc)
- Timers & Controllers
- Hygrometers/Thermometers
- Pest & Disease Control
- Heaters, Chillers & Coolers
- Fans & Ventilation
- Filters
- C02
- Pots, Tubs, Tanks
- Propagation
- Water, Air Pumps & Airstones
- Plant Training
- Plumbing
- Post Harvest & Beyond
- Electricals
- Clearance
- Tent Accessories
10 products

FlairForm pH Buffer 4.0 - 250ML / 1L | Calibration Solution for pH Meters
Regular price $10.00 Save $-10.00
pH meters must be regularly 'calibrated' (i.e. adjusted for accuracy) using standard pH buffer solutions which are made to an internationally agreed recipe.
- Flairform's buffers are formulated with NIST specified ingredients.
- Stabilised to resist algae or growth formation:Ā Growths' can contaminate pH electrodes which in turn affects the āslopeā value beyond the softwareās ability to compensate.

FlairForm Electrode Cleaner - 250ML | Ideal for Bluelab & Other Nutrient Meters
Regular price $10.00 Save $-10.00
For pH & conductivity electrodes
"We have not needed to re-calibrate our pH meters for over 3 years!"
Analytical Laboratory
In many situations, Flairformās electrode cleaner eliminates the need to re-calibrate.Ā Electrode cleaners are usually made from acids, alkalis or chelates. However, these chemicals are largely ineffective for cleaning electrodes that have been contaminated by nutrient solutions.
Flairform Electrode Cleaner is:
- Suitable for bothĀ pH &Ā conductivity meter electrodes.
- Removes both inorganic and organic contamination.
- Restores electrode accuracy and response time.
- Maximizes electrode life-span.
- Unlike with other cleaners, the electrode does not require ārestā time after being cleaned.
- Easy to use:Ā Soak electrode for 5 minutes.
Ā

FlairForm pH Electrode Storage - 250ML | Ideal for Bluelab & Other pH Meters
Regular price $10.00 Save $-10.00
Dry storage of pH electrodes is the most common cause of pH meter failure in hydroponics!
āpH electrodes last several years when stored properlyā
pH electrodes should be stored in a specialized solution when not in use. This helps prevent dehydration of the glass electrode and porous frit (or wick) while preserving the electrodeās filling solution.Ā Ā Ā pH buffers and distilled water are not suitable for storing pH electrodes as they can upset electrode calibration.Ā Electrode storage solutions are carefully structured formulations that do not interfere with the chemical composition of the liquid/gel that is contained within the electrode.
Flairformās pH Electrode Storage helps:
- Maintain electrode accuracy and response time.
- Eliminate reading ādriftā.
- Maximize electrode life-span.

Bluelab Probe Care Kit - Conductivity | Clean & Calibrate PPM/EC/TDS
Regular price $27.00 Save $-27.00
Conductivity EC/TDS/PPM Probe Care Kit
Everything you need to clean and test conductivity (ppm/EC) / temperature probes
The instrument is only as accurate as the probe is clean. Accurate readings simplify crop management and provide improved growth.
Proper ppm/EC probe maintenance also ensures you maximize the life of the probe and instrument.
The probe surface is where the instrument takes the reading of the solution. If the probe face is dirty or contaminated, the readings may be inaccurate. Much like the windshield of a car, if itās dirty you canāt see out! If the probe face is dirty, it cannot read the solution.
A tip⦠if the conductivity reads low, the probe needs cleaning.
You can re-stock your probe care kit with bottles ofĀ Bluelab Solutions.
Probe care instructions
- 2 x 20ml single-use Bluelab 2.77 EC Conductivity Standard Solution
- Plastic cup
- Bluelab Conductivity Probe Cleaner
- Bluelab Chamois (conductivity probe cleaning instrument)

Bluelab Probe Care Kit - Conductivity | Clean & Calibrate pH & Conductivity
Regular price $39.95 Save $-39.95
Everything you need to clean, calibrate and maintain your pH and conductivity probes.
Ā
Care, hydration and calibration ā in one kit
Maintaining your Bluelab pH and conductivity probes
ToĀ ensureĀ ongoing accuracy and longevity, we recommend that you maintain yourĀ BluelabĀ probes on a regular basis.Ā
While no calibration is required for conductivity and temperature, you will need to calibrate your pH probe.Ā YourĀ Probe Care Kit contains sachets of pH 4.0, pH 7.0 andĀ KClĀ solutions for calibrating and storing your pH probes, as well as 2.77 EC standard solution for testing your conductivity probe after cleaning. This kit also includes probe cleaner and cleaning instruments.Ā
Youāll have everything you need to clean, calibrate and hydrate your probes ā in one compactĀ and affordableĀ kit.Ā
Ā
Improve product longevity with regular calibrationĀ
How to calibrate your Bluelab pH products
If you want to improve yourĀ BluelabĀ pH productās accuracy and longevity, youāll need to get into the habit of regular cleaning and calibration.Ā Ā
Luckily, the easy-to-follow calibration process is the same for allĀ BluelabĀ pHĀ probesĀ and pens.Ā Ā
After cleaning your pH probe, youāllĀ need to calibrate it with pH calibration solutions at two reference standards - 4.0 and 7.0Ā pH.Ā Once calibrated, you can start measuring pH again immediately. Youāll need to recalibrate whenever you clean your pH probe and when your meter alerts you that a calibration is needed.
Ā
Stock up on solutionsĀ
Your one-stop pH and conductivity shop
Need to get more solutions? Stock up onĀ BluelabĀ pH ProbeĀ KClĀ Storage Solution,Ā BluelabĀ pH 4.0 and pH 7.0 Calibration Solutions andĀ BluelabĀ 2.77 EC Conductivity Standard Solution;Ā these are all available in numerous sizes.Ā Ā Ā
You can also expand your toolkit with our pHĀ and ECĀ accessories and replacement parts, including replacement pHĀ and conductivityĀ probes, storage caps and carry cases.Ā
Browse through our online shop to find exactly what you need.Ā
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YourĀ BluelabĀ Probe Care Kit ā pH and Conductivity contains:Ā
- Probe care instructionsĀ
- 20 ml single-useĀ Bluelab Solution Sachets - two each of: pH 7.0,Ā pH 4.0,Ā KClĀ and 2.77 EC standard solutionĀ
- ThreeĀ plastic cupsĀ
- BluelabĀ pH Probe CleanerĀ
- BluelabĀ Conductivity Probe CleanerĀ
- ToothbrushĀ for cleaning yourĀ pH probeĀ
- ChamoisĀ for cleaning yourĀ conductivity probe

Hy-Gen EC Conductivity - 2.76 | 250ML / 500ML /1L | Calibration Solution for EC PPM Meter
Regular price $10.00 Save $-10.00
Ā It is essential to calibrate your EC (electrical conductivity) meter with CONDUCTIVITY 2.76 solution regularly. The measurement of available nutrient in the solution is measured as the electrical conductivity. The units used to report the readings are millisiemens per centimetre (mS/cm), Conductivity Factor (cF) or parts per million (ppm).
The conductivity increases with nutrient strength. Distilled or deionised water will give a near zero reading. As a general guide for hydroponics: 1mS/cm = 10cF = 700ppm. Nutrient requirements vary from plant to plant; therefore the ideal conductivity varies from plant to plant also.
SOLUTIONS SCIENTISTS USE
HY-GENĀ® Calibrations solutions are made according to international standards. The pH ELECTRODE STORAGE and PROBE CLEANER solutions are the same quality as those used in laboratories for the safe cleaning and storage of electronic meters. All calibration and care solutions are made using high quality analytical grade constituents.
HY-GENĀ® is the mark of guaranteed quality. All formulations and procedures have been prepared under careful supervision by our qualified chemist who has more than 25 years experience.
- Made According To International Standards
- Safe Cleaning And Storage Of Electronic Meters
- Guaranteed Quality
Ā
Hygen EC Calibration Solution 2.76 Specifications
- 2.76 mS/cm
- 1840 ppm
- CF 27.6
How to Use Hygen EC Calibration Solution 2.76
- Pour some of the solution in to a clean container, enough to cover the probe.
- Insert the probe into the solution to clean and sanitize the EC probe
- Please check your EC meter manual for more information on how to calibrate your meter.

Hy-Gen Probe Cleaning Solution - 250ML 500ML 1L
Regular price $10.00 Save $-10.00
It is recommended that the electrodes be cleaned regularly with HY-GENĀ® Probe Cleaner solution. It is recommended that you clean your meter before calibrating or storing it. This will ensure that it operates with accuracy and precision once calibrated. Always keep your pH electrode stored in HY-GENĀ® pH Electrode Storage solution when not in use.
pH electrodes may show slow response due to the build up of organic and inorganic contaminants which coat or clog them. Regular cleaning with HY-GENĀ® Probe Cleaner solution can prolong
the life of your meter and maximise electrode performance. HY-GENĀ® Probe Cleaner solution can also be used to remove contaminants from Conductivity meter electrodes, making this product a worthwhile investment.
SOLUTIONS SCIENTISTS USE
HY-GENĀ® Calibrations solutions are made according to international standards. The pH ELECTRODE STORAGE and PROBE CLEANER solutions are the same quality as those used in laboratories for the safe cleaning and storage of electronic meters. All calibration and care solutions are made using high quality analytical grade constituents.
HY-GENĀ® is the mark of guaranteed quality. All formulations and procedures have been prepared under careful supervision by our qualified chemist who has more than 25 years experience.
- Made According To International Standards
- Safe Cleaning And Storage Of Electronic Meters
- Guaranteed Quality
SPECIFICATIONS
- Made According To International Standards
- Safe Cleaning And Storage Of Electronic Meters
- Guaranteed Quality

Hy-Gen pH Buffer - 250ML | 7.0 | Calibration Solution for pH Meter
Regular price $10.00 Save $-10.00
pH BUFFER 7 is important as the upper calibration point in the two pointā calibration of electronic meters. Regularly calibrate your pH meter with both pH BUFFER 4 and
pH BUFFER 7 calibration solutions to ensure that your meter is operating with precision and accuracy between pH 4 and 7.
Monitor the pH on a daily basis. As plants grow, demand for nutrients increase. This means the pH can fluctuate and therefore should be tested and adjusted to maintain an optimum working nutrient solution. Nutrient requirements vary from plant to plant; therefore the ideal pH varies from plant to plant also.
SOLUTIONS SCIENTISTS USE
HY-GENĀ® Calibrations solutions are made according to international standards. The pH ELECTRODE STORAGE and PROBE CLEANER solutions are the same quality as those used in laboratories for the safe cleaning and storage of electronic meters. All calibration and care solutions are made using high quality analytical grade constituents.
HY-GENĀ® is the mark of guaranteed quality. All formulations and procedures have been prepared under careful supervision by our qualified chemist who has more than 25 years experience.
- Made According To International Standards
- Safe Cleaning And Storage Of Electronic Meters
- Guaranteed Quality
Bluelab Leap pH Probe - for Guardian Monitor & Combo & pH Meter
Regular price $99.95 Save $-99.95
A replacement probe for Bluelab Combo and pH Meters as well as the Bluelab Guardian Monitor.
The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution.
Unfortunately pH Probes do not last forever as they age through normal use and will eventually fail. With good care and use (keeping the probe tip wet and cleaning once a month) you will extend its life.
The Bluelab pH Probe has a double junction reference which provides a longer life than many other pH probes and is a gel filled non-refillable probe, so apart from cleaning is maintenance free.
Replace only the pH probe, not the whole meter!
Specifications
- Measurement Range: 0.0 ā 14.0 pH
- Accuracy at 25ĢC / 77ĢF: ± 0.1 pH
- Reference: Double junction Ag / AgCl, Sat. KCI gel
- Operating Environment: 0 ā 60 ĢC / 32 ā 144 ĢF
- Calibration: Not required for conductivity. pH requires two point, pH 7.0 & pH 4.0 or pH 10.0 calibration
- User Manual Languages Available: English; EspanŅol; Français; Nederlands; Deutsch
- Six month free repair or replacement guarantee.