Hobby & Pets
ReefParams
Test, log, and watch the trend — without a subscription.
Offline water parameter log for reef & marine aquariums.
Why ReefParams exists
Reef keepers test water constantly, and the apps that track it tend to lock history and trends behind a subscription. ReefParams is a fast local-first parameter log: record only what you tested, keep separate logs per tank, and scroll the full history. Nothing leaves your device.
What ReefParams does
- Log temperature, salinity, pH, alkalinity, calcium, magnesium, NO3, PO4, ammonia, and nitrite
- Fill only the parameters you tested — every field is optional
- Multi-tank support: reef, refugium, frag tank, or any other system
- Dosing schedule per tank: supplement name, amount, unit, and note
- Livestock inventory for fish, corals, inverts, and plants with optional photos
- Export readings as CSV or a full JSON backup
- Optional Google Drive backup (free, your own Drive)
- Fully offline — no account, no subscription
Screenshots
Privacy and local storage
ReefParams stores all readings, dosing, and livestock locally. No account, no tracking. Optional Drive sync goes through your own Google Drive only.
Optional Google services
- + Google Drive (optional): back up and restore your tank logs via your own Drive account
All Google services are optional. ReefParams works completely without them.
Affiliate links disclosure
ReefParams may include clearly-labelled contextual links to test kits, dosing supplements, salt mix, and aquarium equipment. Links are optional and never shown inside your readings.
Get ReefParams
Get it on Google Play
Google Play
Play Store listing coming soon. The app is under active development.