What We Share Here
Working notes from the field, not theory copied out of a book
Most hydroponics guides stop at general explanation. What rarely gets written down is exactly what decides the result in the field: how long seedlings may stay in the nursery, how many fertigation cycles during the rainy season, when to remove the lower leaves, and how to tell bacterial wilt from Fusarium wilt with nothing but a glass of water.
The six modules below contain those things, as numbers and actions you can carry out tomorrow morning.
Fully open
No locked modules, no registration form, no request for your phone number.
Numbers, not guesswork
Every recommendation comes with its working range, its unit, and the reason behind it.
Easy to read on a phone
Every table and diagram adapts to a small screen, so you can open it while standing in the field.
Free to use for teaching
Copy it for farmer groups, school modules, or internal training.
6 Hydroponics Modules
Read them in order, or go straight to the one you need
Hydroponic Systems
Four systems used in commercial greenhouses, how they work, and which one suits your garden.
- Ebb and flow, drip irrigation, NFT, aeroponics
- Required components for each system
- Honest pros and cons
- How to choose your first system
Nursery and Transplanting
Sterilization, choosing trays and media, the dark period, and the right transplant time for each crop.
- Sterilizing trays and media
- Matching tray, media, and seed count
- Dark period and stepped EC
- Transplant age for twelve crops
Nutrients and Fertigation
Why A and B are kept apart, example recipes for leafy and fruiting crops, fertigation schedules by season, and meter calibration.
- The chemistry behind separating Tank A and Tank B
- Recipes for leafy and fruiting vegetables
- Fertigation cycles in dry and rainy seasons
- Calibrating EC and pH meters
Tending and Training Plants
Shaping fruiting plants, removing side shoots, and reading when a plant needs pushing toward fruiting.
- Pruning and supports
- Side shoots, fruit thinning, lower leaves
- Lowering plants for a longer harvest
- Steering vegetative and generative
Plant Pests and Diseases
Recognizing an attack from the marks it leaves, deciding what to do, and telling bacterial wilt from Fusarium wilt.
- Six leaf damage patterns and their causes
- Attack levels and what to do
- The ooze test for telling wilts apart
- Sanitation that breaks transmission
Edible Flowers
A small, high-value crop for restaurants and patisseries, with far stricter hygiene rules.
- Five kinds commonly grown
- Sowing and transplant age
- Growing them with no pesticides at all
- Harvest, packing, and shelf life
The Learning Order We Suggest
If you are truly starting from zero
-
Understand the system first, then buy equipment
Module 1. Many people buy the setup first, then realize the system demands attention they do not have time to give.
-
Master the nursery before planting a lot
Module 2. Try one tray first. A bad seedling will never become a good plant.
-
Learn to measure, not to guess
Module 3, read it with an EC and pH meter in your hand. Use the AB Mix calculator for your own reservoir.
-
Keep things clean from day one
Module 5. Reading it before you have a problem is far more useful, because almost all of it is prevention.
-
Only then move on to advanced techniques
Module 4 and Module 6 after one of your growing cycles has gone well.
Equipment You Need to Prepare
These four decide the outcome, the rest can come later
EC or TDS meter
Without it, you cannot apply any of the numbers in the modules. This is the first purchase, not the last.
pH meter
A pH value that is off locks up nutrient elements even when the solution holds enough of them.
A reliable pump and power supply
For NFT and aeroponics, prepare a backup before you sow the seed, not after.
Mixing container and measuring tools
A measuring cup and a needleless syringe. Half a milliliter of difference in a small volume already shifts the EC.
Questions About This Training
Before you start reading
Is this hydroponics training really free?
Completely free. No cost, no registration, no phone number or email address to hand over, and no locked modules.
All of the material is open on this page and can be read straight from a phone or a computer.
Is this material suitable for a beginner who has never grown anything?
Yes. Module 1 and Module 2 are written for people who have never touched a hydroponic setup at all, and every term is explained the first time it appears.
Module 4 and Module 6 ask more of you, but they are still useful as a picture of where your skills will go.
What is the minimum equipment I need?
An EC or TDS meter, a pH meter, a pump with a reliable power supply, and a container for mixing the solution.
Meters are what beginners skip most often, even though they matter most. Growing hydroponically without meters is like cooking without tasting.
May this material be used for teaching or for putting together school modules?
Yes, and you do not need to ask permission. Many teachers look for material for the student profile strengthening project and for craft subjects, and this material was put together so it can be used that way.
We only hope the source is mentioned, so your readers can find the latest version along with its calculators.
Other Tracks and Tools
All free
Fish Farming Training
Raising tilapia and catfish at high density, from water quality to harvest and transport.
AB Mix Nutrient Calculator
Work out the stock solution dose for your reservoir volume, or blend your own from single fertilizers sold in Indonesia.
Biofloc Pond Calculator
Pond volume, how many fingerlings fit, feed and molasses needs, through to a harvest estimate.
Something You Want to Ask
If any part is not clear or you want a new module on a particular topic, tell us.