What's inside the aquarium log
- Tank Profile
- Water Test Log
- Water change log
- Maintenance Checklist
- Feeding Schedule
- Fish & Plant Inventory
- Fish Profiles
- Health Notes
- Equipment & Purchases
- Wish List
- Notes
See every page
All 15 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. Tank Profile
- 5. Water Test Log
- 6. Water change log
- 7. Maintenance Checklist
- 8. Feeding Schedule
- 9. Fish & Plant Inventory
- 10. Fish Profiles
- 11. Health Notes
- 12. Equipment & Purchases
- 13. Wish List
- 14. Notes
- 15. Thank you page
Who this aquarium log is for
This log is for aquarium keepers caring for freshwater, planted, saltwater or reef tanks, from a single betta bowl to a large community tank. It suits beginners cycling their first tank and experienced hobbyists who want stable water and healthy fish. Water quality is everything in an aquarium, and regular testing, water changes and careful notes about fish and plants help you spot problems early and keep a beautiful, thriving tank year after year.
How to use your aquarium log
Fill in a tank profile with size, filter, heater, lighting and setup date. Record water tests for ammonia, nitrite, nitrate and pH, and log every water change with the amount. Follow the maintenance checklist for filters and glass. Set a feeding schedule. Keep an inventory of fish and plants and a profile for each fish. Note health issues and treatments, record equipment purchases and keep a wish list of fish and plants to add.
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 downloadAquarium Log questions
Can I log water tests?
Yes. Look for the "Water Test Log" and "Water change log" pages in the 15-page aquarium log. Print the A4 or US Letter PDF as often as you need, or write in the digital version on a tablet. Every page is undated, so you can start any day and reprint a page whenever it fills up.
Is there a maintenance checklist?
Yes. Look for the "Maintenance Checklist" page in the 15-page aquarium log. 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 saltwater tanks?
Yes. Look for the "Tank Profile" page in the 15-page aquarium log. 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.
Is the Aquarium Log really free?
Yes, the Aquarium Log is completely free for personal use. Download the 15-page PDF without an account or email address, print it at home as often as you like and share the page link with friends. FolarraStudio is free to use. In the future, a few clearly labeled ads may help keep it free.
What size is the Aquarium Log?
The Aquarium 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 15 pages.
