Tankside

A real aquarium's calm, without the water changes you forget. On your TV or your phone.

What it is

Fish that swim like fish: they turn with their body, burst and glide, hover, chase, shoal and take food from the water with their mouth.
36 species across saltwater and freshwater, each with its own temperature range, tank-mate rules and habits — bottom dwellers, algae grazers, fin nippers and a few that hunt smaller fish.
Care you actually do: wipe the glass, siphon the floor, change water, rinse the filter and dose medicine drop by drop when a fish falls ill.
Relaxed mode never loses a fish. Realistic mode can, and asks you first. Decor mode stops care entirely and just looks good.
Care tokens are earned by looking after the tank and spent on new fish. There is nothing to buy with real money.
Runs on the TV with the remote only, and on a phone by touch. English and Türkçe.

Not a screensaver: Android TV does not let apps become the system screensaver, so you open Tankside when you want it and it keeps the screen awake while it is on.
No ads, no account, no internet permission. The aquarium keeps living between sessions on the device itself.

A second and third aquarium and a second look for each water are part of Tankside Pro, free to unlock while the app is in early access.