8.9
Hydroponics / PH adjustment and testing kits
This range
Ph Control Hydroponics
Data updated 2026-10-30
Maintain the perfect acidity levels in your reservoir for optimal nutrient uptake 20 systems · 13 brands
Systems for fresh herbs
Systems for vegetables
Systems with LED grow lights
Water and air pumps
Affordable
Systems for flowers
Systems for fruits
Vertical hydroponic towers
Automatic timer systems
Hydroponic plant food
Hydroponic net pots and baskets
Leca clay pebbles
Black hydroponic systems
Height adjustable grow lights
White hydroponic systems
12 pod hydroponic systems
Kits for beginners
Replacement grow sponges
Deep water culture systems
Rockwool grow cubes
30 pod hydroponic systems
Systems with quiet pumps
PH adjustment and testing kits
15 pod hydroponic systems
Green
WiFi and app controlled systems
Blue
Gardening gifts for women
8 pod hydroponic systems
Grey hydroponic systems
60 pod hydroponic systems
Gray
Propagation and cloning kits
Fits 16 inch
Aeroponic growing systems
Gardening gifts for men
Brown
Best Ph Control Hydroponics
8.9
8.8
Atwater Hydroponics
Five gallon deep water culture bucket kit
$69.96
Water and air pumps Hydroponic plant food Deep water culture systems
8.8
yadoker
LED Growing Light Full Spectrum for Indoor Plants
$6.63
Height adjustable grow lights Affordable Systems with LED grow lights
8.2
7.5
Awesome Plant
Six pack of liquid hydroponic plant food
$8.99
Systems for fresh herbs Systems for vegetables Affordable Systems for flowers Hydroponic plant food
LBW
Full Spectrum Plant Light for Indoor Growing
$11.99
Automatic timer systems Affordable Systems for fresh herbs Systems with LED grow lights
Yewhick
WiFi enabled pH and EC nutrient monitor
$85.88
Hydroponic plant food WiFi and app controlled systems
yadoker
LED Growing Light Full Spectrum for Indoor Plants
$16.55
Height adjustable grow lights Systems with LED grow lights White hydroponic systems
yadoker
72 LEDs Plant Grow Light for Indoor Plant
$9.99
Height adjustable grow lights Affordable Systems for fresh herbs Systems with LED grow lights White hydroponic systems
Barrina
OG03C Rechargeable Puck Grow Light
$35.99
Black hydroponic systems Systems with LED grow lights
Twinstrip
Three in one water test strips 120 count
$37.99
Deep water culture systems Aeroponic growing systems
KYEELCP
Rechargeable Grow Lights for Indoor Plants
$19.99
Systems for flowers Systems for fresh herbs
yadoker
Halo Plant Grow Light
$11.99
Height adjustable grow lights Affordable Systems with LED grow lights
yadoker
LED Growing Light Full Spectrum for Indoor Plants
$11.99
Height adjustable grow lights Affordable Systems with LED grow lights
yadoker
Halo Plant Grow Light
$6.29
Height adjustable grow lights Affordable Systems with LED grow lights
Tools for nutrient reservoir balance
Maintaining the correct acidity in your water is essential for plants to absorb nutrients. This set provides the chemicals and testing tools needed to monitor and adjust your reservoir. Without these adjustments, plants may experience nutrient lockout even if the water is full of fertilizer.
These listings include both liquid adjustment solutions and rapid testing methods. You will find products designed for Deep Water Culture (DWC), aeroponics, and standard indoor hydroponic systems.
Testing strips and liquid adjusters
The catalog contains various ways to measure and change your water chemistry. Some kits are focused on quick daily checks, while others provide the bulk liquids needed for large-scale corrections.
This filter includes the following items:
- 3-in-1 test strips for pH, alkalinity, and hardness
- pH Up and pH Down liquid concentrates for precise balancing
- Complete DWC bucket kits that include starter testing supplies
- Plant-based water treatments for nutrient stabilization
- Nursery germination trays with integrated pH support
How to use these adjustment kits
Start by using the test strips from brands like TwinStrip to get a baseline reading of your reservoir. Most hydroponic plants prefer a range between 5.5 and 6.5. If the reading is outside this window, use small increments of the pH Up or Down liquids to bring the water back to the target level.
Check the brand pages for Atwater Hydroponics or General Hydroponics to see specific concentrations. Some solutions are highly concentrated and only require a few drops per gallon to make a significant change in the water chemistry.