Xiaomi's new smart fish tank feeds your fish and filters itself for $85
Xiaomi has announced the Mijia Smart Fish Tank 2 Pro, a connected aquarium that handles feeding, filtration, and monitoring automatically — priced at 599 CNY (around $85) on the Xiaomi YouPin crowdfunding platform. The crowdfunding campaign opens August 24, 2026, in China. There's no confirmed launch date for the US or UK.
The tank
The headline feature is a multi-layer filtration system built around a U-shaped biofilter channel. The curved path increases how long water stays in contact with beneficial bacteria, which breaks down waste more effectively than a straight-through filter. A brushless-motor pump drives the flow — typically quieter and longer-lasting than the budget alternatives found in entry-level aquariums.
A 1.47-inch color LCD on the front panel displays water temperature, system status, and alerts if something goes wrong. It won't win any beauty contests, but it means you get a quick status read without opening the app.

The 1.47-inch LCD displays water temperature and system alerts at a glance.
The smart side
Control runs through the Mijia app: set feeding schedules, adjust pump speed, and check water temperature remotely. The built-in auto-feeder supports both timed schedules and manual one-off feeds from your phone. Xiao Ai voice assistant is also supported — though that feature has limited use outside China, where the assistant runs on regional servers.
Safety touches include automatic system shutdown when the lid is opened and a cover design meant to stop fish jumping out.
A 5W smart expansion port lets you add optional modules — a water heater or a UV sterilization unit — without replacing the whole tank. The tank can also run off a USB power bank during a power cut, which is a practical addition for anyone who's lost fish to an outage.

The 5W expansion port supports optional heater and UV sterilization modules.
Availability
Right now, the Mijia Smart Fish Tank 2 Pro is China-only. Buyers in the US and UK have no official route to purchase — grey-market imports via AliExpress are the likely option after the crowdfunding period closes. The Xiao Ai voice integration also reportedly locks to Chinese servers on earlier Mijia models, which could limit the app experience for English-speaking users even on an imported unit.
At $85, it's positioned less as a serious aquarist's tool and more as a low-maintenance desk or office companion. Whether Xiaomi brings it West depends on demand — the brand has expanded other Mijia home appliances into Europe since 2025, but the aquarium line hasn't featured in any announced rollout so far.