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Predatory fish

The tank, the residents, and two very calm goldfish.

I keep predatory fish. Clean water, the right food, and a lid they can’t jump past. There’s more engineering in a fish tank than people think.

Feeding time is never boring. The goldfish live a much calmer life.

A dark fish with a red belly and sharp teeth against a black background — Up close

A tank set up like a riverbed, with driftwood, stones and tinted water — The tank

Fish in a tank under a spotlight, with driftwood — Lights on

A silver fish with a dark tail in a planted tank, a hand beside the glass — Hand for scale

A round orange and white goldfish resting in a palm — Goldfish in hand

A small orange goldfish held in a hand above water — Tiny goldfish