Your aquarium journal stays on your device. There is no FISH account and no advertising tracker.
Aquarium care for iPhone
A calmer rhythm for life underwater.
FISH turns your tank, livestock, filter, water tests, and recent care into clear next steps—with adult-growth forecasts and safety warnings that always explain why.
Measured ammonia, nitrite, and welfare warnings take priority over forecasts, subscriptions, and AI.
The care plan and stocking model are deterministic. Optional AI explains context; it never diagnoses or prescribes.