Welcome to Saltwater Aquarium Logger
The complete free solution for managing your reef aquarium. Track water parameters, upload ICP analysis, manage equipment with secure receipt storage, monitor livestock, plan dosing schedules, buy and sell coral frags in the marketplace, and share your setup with the community.
Water Parameters
Track temperature, pH, salinity, ammonia, nitrite, nitrate, phosphate, calcium, alkalinity, and magnesium
Historical Charts
Visualize trends over time with interactive charts. Identify patterns and optimize your reef environment.
Livestock Tracking
Manage your fish and coral inventory with photos, scientific names, and care notes.
Dosing Schedules
Plan and track your additive dosing with multiple doses per day and comprehensive product database.
Water Changes
Log water changes and maintenance activities to maintain a healthy reef system.
Public Sharing
Share your aquarium publicly with customizable permissions. Show off your reef to friends and community.
Data Export
Export your aquarium data to CSV/Excel or PDF format. Choose which data to include for backups or analysis.
Comprehensive Database
Browse 820+ products from leading brands including foods, supplements, salts, and equipment.
ICP Analysis Upload
Upload and track ICP-OES test results. Store comprehensive water chemistry analysis for long-term monitoring.
Equipment Management
Track all your reef equipment with model numbers, purchase dates, and installation records.
Safe Document Storage
Securely store receipts and serial numbers. Keep warranty information and purchase records safe.
Community Support
Get help and share experiences with fellow reef keepers on Saltvandsforum.dk
Frag Marketplace
Buy and sell coral frags with fellow reef keepers. List your frags, browse available corals, and grow your collection.
What You Can Do in the System
Water Quality Monitoring
- Record all major water parameters with timestamps
- View historical trends with interactive charts
- Get tooltips with ideal ranges for out-of-range values
- Track measurements over time to spot issues early
Livestock Management
- Catalog your fish with photos and scientific names
- Track coral species with care requirements
- Link to external resources (ReefApp, Coral-ID)
- Add personal notes and observations
Additives & Dosing
- Browse 820+ products from major reef brands
- Set up multiple doses per day for each additive
- Schedule dosing by day of week
- Filter products by category and vendor
- Access direct links to product information
ICP Analysis Tracking
- Upload ICP-OES test results and reports
- Store comprehensive water chemistry analysis
- Track trace elements and heavy metals over time
- Keep historical records of all ICP tests
- Compare results across multiple test dates
Equipment Management
- Catalog all your reef equipment in one place
- Upload and store purchase receipts securely
- Save serial numbers for warranty claims
- Track purchase and installation dates
- Access receipts anytime, from anywhere
- Never lose warranty information again
Frag Marketplace
- Buy and sell coral frags with the community
- List your frags with photos and pricing
- Browse available frags by seller or species
- Shopping cart with automatic reservation system
- Order management for both buyers and sellers
- Bulk upload frags via CSV/XLSX spreadsheets
Sharing & Data Export
- Generate shareable public links for your tanks
- Customize what visitors can see (fish, corals, parameters)
- Export your data to CSV/Excel (multi-sheet workbook)
- Export formatted PDF reports with all your aquarium data
- Private data (receipts, serial numbers) excluded from shares
Completely Free to Use
No subscriptions, no hidden fees
No Cost
All features available to everyone at no charge
No Limits
Unlimited aquariums, measurements, and data storage
Community Driven
Built by reef keepers, for reef keepers
This project is maintained as a free service to the reef keeping community. No payment information is required.