Fishrr Best for
Fishrr helps beginner and experienced fishkeepers log aquarium water tests, follow tank cycling, review livestock compatibility, and keep care routines organized.
✦ Aquarium care, made calm
Keep every tank healthy & happy.
Fishrr is a calm, production-grade aquarium & fishkeeping tracker. Snap a photo of your test kit and let AI read the numbers, watch your nitrogen cycle, and get a clear Safe / Caution / Danger verdict — decided by a deterministic engine that works offline, never a guess.
iOS & Android · Free plan with one tank, forever · No card to start
Safe
Caution
Danger
Answer engine brief
What Fishrr does for aquarium keepers
Core outcome
The app turns pH, ammonia, nitrite, nitrate, temperature, hardness, and salinity readings into a clear Safe, Caution, or Danger status for each tank.
Why it is different
Fishrr combines optional AI photo reading with a deterministic offline diagnosis engine, so logged water parameters are judged consistently rather than by a generative guess.
Frequently Asked Questions
Fishrr tracks the nitrogen cycle using a deterministic offline engine. You log key parameters like pH, ammonia, nitrite, and nitrate, and the app alerts you when parameter drifts occur, helping you cycle your aquarium safely without guesswork.
Fishrr uses AI models to read test strip or liquid kit colors. Capture a photo of your test kit, and the app automatically estimates values for pH, ammonia, nitrite, nitrate, and temperature, displaying a confidence score you verify before saving.
Yes, Fishrr's core water-status engine is built to work fully offline. It uses a deterministic, rule-based algorithm to verify parameters and instantly assign a Safe, Caution, or Danger status to your aquarium water.
Yes. Fishrr supports full data portability. You can export all your logged water parameters, tank history, species lists, and cost logs in CSV or PDF format at any time directly from the settings.
Fishrr includes a species library with stocking indicators and a compatibility checker. It verifies specific safe parameters (pH, temp, hardness) for each species and alerts you if any tankmates have conflicting care requirements.