Hydroponic pH Explained: Ideal Range and How to Adjust It
Learn how to choose a crop-specific hydroponic pH range, calibrate a meter, adjust solution safely, and interpret drift without chasing one decimal.
Practical hydroponics guides
Grow fresh food at home,
no soil required.
Clear, step-by-step guides to choosing your first system, balancing water and nutrients, and harvesting crisp greens year-round.
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Start where you are
Equipment & Supplies
How to choose, size, and maintain LED grow lights, air and water pumps, grow media, net pots, reservoirs, and essential indoor growing supplies.
Getting Started
Foundations, startup costs, seed germination, transplanting, and practical first steps for beginning soilless and indoor hydroponic growers.
Hydroponic Systems
Plain-English comparisons and setup guides for deep water culture (DWC), Kratky, NFT, ebb and flow, drip, wick, vertical, and aeroponic systems.
Nutrients & Water
Practical guides to hydroponic nutrients, pH and EC ranges, water temperature, dissolved oxygen, reservoir top-ups, and water quality management.
Troubleshooting
Diagnose and prevent common hydroponic problems including root rot, yellow leaves, nutrient burn, pH drift, algae, slow growth, pests, and power outages.
What to Grow
Crop-by-crop hydroponic growing guides for leafy greens, basil, herbs, strawberries, tomatoes, cucumbers, peppers, spinach, kale, and microgreens.
Start here
New to hydroponics?
Follow these five guides in order. You will learn the basics, compare options, choose a simple system, start seeds, and understand your water.
- 01Getting StartedWhat Is Hydroponics and How Does It Work? A Beginner’s Guide
- 02Getting StartedHydroponics vs Soil Growing: Pros, Cons, and Which to Choose
- 03Hydroponic SystemsWick System Hydroponics: The Simplest Passive Setup Explained
- 04
- 05Nutrients & WaterHydroponic pH Explained: Ideal Range and How to Adjust It
Reader favourites
Popular guides
Growing Hydroponic Basil: A Beginner Step-by-Step Guide
Basil is the star hydroponic herb — fast, fragrant, and high-value. Learn how to grow hydroponic basil from seed to harvest, including light, feeding, and pruning.
Hydroponic Root Rot: Causes, Symptoms, and How Beginners Can Prevent It
Spot the early signs of hydroponic root rot, distinguish stained roots from true decay, and protect your reservoir with dissolved oxygen, cool water, and clean equipment.
How Much Does It Cost to Start Hydroponics at Home?
Build a realistic home hydroponics budget covering equipment, lighting, nutrients, meters, electricity, replacements, and crop-specific costs.
Best Vegetables to Grow Hydroponically for Beginners
Not every crop suits a beginner hydroponic system. Here are the easiest, fastest, and most rewarding vegetables to grow hydroponically when you are starting out.
Why Are My Hydroponic Leaves Turning Yellow? A Beginner Troubleshooting Guide
Diagnose yellow leaves in hydroponics step by step by checking leaf position, root health, pH, EC, lighting, water temperature, and true nutrient deficiencies.
Beginner gear
The essentials, explained
Understand what each part does before you buy it. Our equipment guides focus on fit, safety, and maintainability.
System
DWC bucket or countertop kit
A straightforward first setup for learning how roots, water, and air work together.
MeasureDigital pH and EC meters
See what is happening in the reservoir before making an adjustment.
FeedBeginner nutrient set
A complete formula designed for hydroponic crops and your water source.
LightFull-spectrum grow light
Reliable indoor light sized for your crop and growing area.
MediaNet cups and growing media
Support seedlings while leaving enough space for healthy root growth.
OxygenAir pump and air stone
Keep dissolved oxygen moving through an active deep-water system.
Latest guides
Fresh from the grow room
Growing Hydroponic Bok Choy and Asian Greens at Home: Fast, Beginner-Friendly Crops
Grow crisp hydroponic bok choy (pak choi), tatsoi, and baby mustard greens in 28 to 35 days with ideal pH, EC, lighting, and bolt-prevention tips.
Blossom End Rot in Hydroponic Tomatoes and Peppers: Causes and Prevention
Prevent dark, sunken blossom end rot on indoor hydroponic tomatoes and peppers by stabilizing drip flow, EC, calcium uptake, root health, and humidity.
Hydroponic Lettuce Tipburn and Bolting: Why Leaves Turn Bitter or Brown and How to Prevent It
Stop inner leaf-edge browning (tipburn) and premature bolting in hydroponic lettuce by managing canopy airflow, calcium delivery, DLI, and root-zone temperature.
The Kratky Method Explained: How to Grow Hydroponic Plants Without Pumps or Power
Build a passive Kratky hydroponic container with zero electricity. Learn how the self-regulating air gap works, how to size containers, and how to avoid drowning roots.
Deep Water Culture (DWC) Hydroponics: Complete Beginner Setup and Maintenance Guide
Learn how to build, aerate, and maintain a Deep Water Culture (DWC) bucket or tote system, set initial net pot water levels, and keep submerged roots healthy.
Hydroponic Reservoir Top-Ups: Add Water or Nutrient Solution?
Decide whether a hydroponic reservoir needs water, nutrients, or replacement using water level, EC, pH, crop stage, source water, and solution history.
Salt Buildup in Hydroponics: Causes, Warning Signs, and Safe Prevention
Learn why salts accumulate in hydroponic reservoirs and growing media, how to read EC and runoff trends, and when to rinse or replace solution.
Hydroponic Power Outage: Emergency Steps, Backup Options, and Recovery
Protect hydroponic crops during a power outage with system-specific priorities, safe backup power, restart checks, and recovery guidance.
Hydroponic Nutrient Deficiency: How to Diagnose Before Adding More Fertilizer
Learn how to diagnose hydroponic nutrient deficiencies using leaf patterns, roots, pH, EC, source water, mixing history, and delivery checks.
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