Atoll — Aquarium & Reef Log

Track your reef or aquarium offline, and see problems before they happen.

Atoll is an offline-first log for reef and freshwater aquariums.Every reading you take lives on your phone. No account, no sign-up, and nothing to lose when the network is not there — which, for most people, is exactly where the tank is.It tells you what happens nextLog a few tests and Atoll fits a line through them. When a parameter is drifting steadily towards the edge of your target range, it says so, and how man…