Bench 03 · 17 articles

Nutrition, pH & Water Science

Mix nutrients with confidence, dial in pH and EC, decode deficiency charts, and choose between tap, RO, and rainwater.

Nutrition, pH & Water Science
pH and EC for Beginners: The Two Meters You Cannot Skip
Nutrition & pH13 min

pH and EC for Beginners: The Two Meters You Cannot Skip

What pH and electroconductivity actually measure, the targets per crop, and how to calibrate the cheap meters that everyone owns.

25 abr 2026 · Dr. Julian Reed
How to Flush Your Hydroponic System Before Harvest
Nutrition & pH37 min

How to Flush Your Hydroponic System Before Harvest

Explore our comprehensive guide on How to Flush Your Hydroponic System Before Harvest. Part of our technical series on nutrient science and water chemistry, this report covers everything you need to optimize your yield and maintain a healthy grow environment.

14 abr 2026 · The Hydro Lab Admin
Reading a Nutrient Deficiency Chart Like a Plant Doctor
Nutrition & pH13 min

Reading a Nutrient Deficiency Chart Like a Plant Doctor

Yellow leaves, purple stems, twisted tips — a structured way to diagnose the 12 most common deficiencies.

15 mar 2026 · Dr. Julian Reed
How to Calibrate Your pH and EC Meters Properly
Nutrition & pH35 min

How to Calibrate Your pH and EC Meters Properly

Explore our comprehensive guide on How to Calibrate Your pH and EC Meters Properly. Part of our technical series on nutrient science and water chemistry, this report covers everything you need to optimize your yield and maintain a healthy grow environment.

7 mar 2026 · The Hydro Lab Admin
Mastering Hydroponic Nutrients: N-P-K Ratios Explained
Nutrition & pH34 min

Mastering Hydroponic Nutrients: N-P-K Ratios Explained

Explore our comprehensive guide on Mastering Hydroponic Nutrients: N-P-K Ratios Explained. Part of our technical series on nutrient science and water chemistry, this report covers everything you need to optimize your yield and maintain a healthy grow environment.

4 mar 2026 · The Hydro Lab Admin
Best Nutrient Brands for Beginners: General Hydroponics vs. Fox Farm
Nutrition & pH44 min

Best Nutrient Brands for Beginners: General Hydroponics vs. Fox Farm

General Hydroponics Flora Series and Fox Farm Trio are the two most popular beginner nutrient lines. This head-to-head comparison covers price per gallon, pH buffering, mixing complexity, crop suitability, and feeding schedules to help you choose the right one for your first hydroponic grow.

26 feb 2026 · The Hydro Lab Admin
Best Reservoir Heaters and Chillers for Stable Water Temp
Nutrition & pH42 min

Best Reservoir Heaters and Chillers for Stable Water Temp

Stable water temperature between 18 and 22 degrees Celsius is critical for hydroponic root health. This guide covers ideal temperature ranges, dissolved oxygen dynamics, brand comparisons of Active Aqua and Hydrofarm chillers, the Inkbird aquarium heater hack, and DIY cooling methods.

21 feb 2026 · The Hydro Lab Admin
Organic Hydroponics: Is it Actually Possible?
Nutrition & pH48 min

Organic Hydroponics: Is it Actually Possible?

Can hydroponics truly be organic? We break down the chemistry of organic nutrients in soilless systems, compare sterile vs. living reservoirs, and reveal which products actually work without clogging your pumps or breeding root rot.

18 feb 2026 · The Hydro Lab Admin
How to Adjust pH in Hydroponics Without Expensive Chemicals
Nutrition & pH47 min

How to Adjust pH in Hydroponics Without Expensive Chemicals

Save money on pH adjusters with a complete guide to natural alternatives including lemon juice, vinegar, citric acid, and baking soda. Learn the pros and cons of each, calculate precise dosages, and understand when natural adjusters are acceptable versus when commercial products are worth the cost.

16 feb 2026 · The Hydro Lab Admin
Tap vs RO Water: When You Actually Need a Reverse Osmosis Filter
Nutrition & pH13 min

Tap vs RO Water: When You Actually Need a Reverse Osmosis Filter

RO filters are sold as essential. They aren't — unless your tap water has these specific problems.

8 feb 2026 · Dr. Julian Reed
Chelated Nutrients: Why They Matter for Plant Absorption
Nutrition & pH39 min

Chelated Nutrients: Why They Matter for Plant Absorption

What chelation means, the four main chelate types and their pH ranges, how to fix iron deficiency, and when you are wasting money on chelated versus non-chelated fertilizers. A complete guide for hydroponic growers.

7 feb 2026 · The Hydro Lab Admin
Understanding EC and PPM: Monitoring Your Nutrient Strength
Nutrition & pH43 min

Understanding EC and PPM: Monitoring Your Nutrient Strength

Explore our comprehensive guide on Understanding EC and PPM: Monitoring Your Nutrient Strength. Part of our technical series on nutrient science and water chemistry, this report covers everything you need to optimize your yield and maintain a healthy grow environment.

29 ene 2026 · The Hydro Lab Admin
How to Make Your Own DIY Hydroponic Nutrient Solution
Nutrition & pH41 min

How to Make Your Own DIY Hydroponic Nutrient Solution

A complete technical guide to formulating your own hydroponic nutrient solution from raw salts. Covers calcium nitrate, magnesium sulfate, potassium nitrate, MKP, mixing order, EC calculation, cost comparison vs pre-mixed, hard water compatibility, and safety precautions.

19 ene 2026 · The Hydro Lab Admin
Reverse Osmosis (RO) vs. Tap Water for Hydroponics
Nutrition & pH45 min

Reverse Osmosis (RO) vs. Tap Water for Hydroponics

Should you invest in a reverse osmosis system for your hydroponic garden, or is tap water good enough? In this comprehensive guide, Dr. Julian Reed breaks down the chemistry of municipal water, the true cost of RO filtration, and exactly when purified water is essential versus overkill for your specific grow setup. Learn to interpret water quality reports, remineralize RO water, and set your baseline PPM and EC for consistent, repeatable nutrient management.

19 ene 2026 · The Hydro Lab Admin
How Often Should You Change Your Hydroponic Reservoir?
Nutrition & pH45 min

How Often Should You Change Your Hydroponic Reservoir?

How often should you actually change your hydroponic reservoir? The answer depends on your system type, plant count, growth stage, and whether you use enzymes. Dr. Julian Reed covers DWC, NFT, aeroponics, and ebb and flow schedules, plus step-by-step change protocols, top-off vs. full change strategies, seasonal adjustments, and warning signs that your solution needs immediate replacement.

18 ene 2026 · The Hydro Lab Admin
The Impact of Water Temperature on Oxygen Levels (DO)
Nutrition & pH40 min

The Impact of Water Temperature on Oxygen Levels (DO)

Water temperature is the single most critical environmental factor controlling dissolved oxygen in hydroponic systems. Learn the precise temperature-DO relationship, ideal ranges for every major crop, and proven strategies for reservoir cooling and heating.

15 ene 2026 · The Hydro Lab Admin
Beneficial Bacteria in Hydroponics: Do You Need Them?
Nutrition & pH29 min

Beneficial Bacteria in Hydroponics: Do You Need Them?

A science-backed guide to beneficial bacteria in hydroponic systems. Compare Hydroguard, Great White, and Orca, learn how Bacillus species prevent Pythium root rot, and discover when to use sterile reservoirs instead.

4 ene 2026 · The Hydro Lab Admin