What's inside the hydroponics log
- System Setup
- Water Readings
- Nutrient Changes
- Growth Log
- Harvest Log
- System Maintenance
- Troubleshooting
- Notes
See every page
All 12 pages of the US Letter version, exactly as they print. Tap a page to see it larger.
- 1. Cover
- 2. This Log Belongs To
- 3. Contents
- 4. System Setup
- 5. Water Readings
- 6. Nutrient Changes
- 7. Growth Log
- 8. Harvest Log
- 9. System Maintenance
- 10. Troubleshooting
- 11. Notes
- 12. Thank you page
Who this hydroponics log is for
This log is for hydroponic growers using systems such as deep water culture, NFT, Kratky jars or countertop units. It suits beginners growing herbs indoors and hobbyists with larger setups. Hydroponics depends on water quality, nutrients and light, so careful records of pH, EC and growth are key. It also suits apartment dwellers without a garden who want fresh greens year round, and teachers running classroom growing projects. Small changes in nutrients or light can make a big difference, and written notes show what works best for each crop.
How to use your hydroponics log
Record your system setup. Log water readings and nutrients. Track growth and harvests. Note maintenance and problems. Test water at the same time each day or week and record pH, EC and temperature. Note nutrient changes and top-ups, measure plant growth weekly and clean pumps and reservoirs on schedule. Record problems like algae or root rot with the fix you tried, so you can prevent them next time.
Formats included
A4 PDF
For printing in most of the world (210 × 297 mm).
US Letter PDF
For printing in the US and Canada (8.5 × 11 in).
Digital PDF
Hyperlinked tabs for tablets and PDF annotation apps.
Ready to start?
Free downloadHydroponics Log questions
Can I record pH and EC?
Yes. Other pages in the 12-page hydroponics log include "System Setup", "Water Readings" and "Nutrient Changes", so related notes stay together. Every page is undated, so you can start any day and reprint a page whenever it fills up. Download it free, print only the pages you need and add more copies of any page later.
Does it work for countertop units?
Yes. Other pages in the 12-page hydroponics log include "System Setup", "Water Readings" and "Nutrient Changes", so related notes stay together. Every page is undated, so you can start any day and reprint a page whenever it fills up. Download it free, print only the pages you need and add more copies of any page later.
Can I track harvests?
Yes. Look for the "Harvest Log" page in the 12-page hydroponics log. Download it free, print only the pages you need and add more copies of any page later. Print the A4 or US Letter PDF as often as you need, or write in the digital version on a tablet.
Is the Hydroponics Log really free?
Yes, the Hydroponics Log is completely free for personal use. Download the 12-page PDF without an account or email address, print it at home as often as you like and share the page link with friends. Matching bundles on our Etsy shop are optional and paid; this single planner stays free.
What size is the Hydroponics Log?
The Hydroponics Log comes in A4 (210 x 297 mm) and US Letter (8.5 x 11 inches), plus a hyperlinked digital PDF for tablets. Choose the file that matches the paper in your printer and print at Actual size or 100%, so nothing is cut off. Both paper sizes have the same 12 pages.
