🐟 Fish Guides

A goldfish lives 20 years — if you feed it right

Most aquarium fish die from overfeeding, not hunger. Pick your fish for honest feeding notes — how much, how often, and what the pet store never tells you.

Goldfish

The 20-year roommate — not the 2-week prize you were told.

📏 10–25 cm · 30+ cm in ponds ⏳ 10–20 years (can exceed 25)

Betta (Siamese Fighting Fish)

A warrior in a ballgown — and yes, he knows you're watching.

📏 5–7 cm ⏳ 3–5 years

Guppy

Breeds like confetti, eats like it's always dinner time.

📏 3–5 cm ⏳ 2–3 years

Koi

The pond dog — it will learn your footsteps and eat from your hand.

📏 40–90 cm · up to 15 kg ⏳ 25–50 years (some documented 100+)

Zebrafish (Zebra Danio)

The perpetually hungry torpedo that never stops swimming.

📏 4–5 cm ⏳ 3–5 years

Neon Tetra

A living neon sign — best enjoyed in a glowing school of ten.

📏 2–3 cm ⏳ 5–8 years

Freshwater Angelfish

The tall, elegant one that will absolutely eat your neon tetras.

📏 10–15 cm body · 20+ cm tall fins ⏳ 8–12 years

Corydoras (Cory Catfish)

The janitor crew that mops the floor — but it needs its own dinner.

📏 4–7 cm ⏳ 5–10 years

Platy

The beginner's rainbow — always hungry, never fussy.

📏 4–6 cm ⏳ 3–4 years

Molly

The vegetarian-leaning livebearer that grazes like a tiny cow.

📏 6–12 cm ⏳ 3–5 years

Swordtail

Dashing, colorful, and faster to the food than everyone else.

📏 6–10 cm (males with 'sword' tail) ⏳ 3–5 years

Tiger Barb

A striped gang of hustlers — keep six or they'll bully everyone.

📏 5–7 cm ⏳ 5–8 years

Discus

The king of aquariums — gorgeous, expensive, and demanding.

📏 15–25 cm ⏳ 10–15 years

Dwarf Gourami

A calm bubble-nest builder that patrols the top floor.

📏 5–8 cm ⏳ 4–6 years

Common Pleco (Suckermouth Catfish)

The aquarium 'cleaner' that grows into a giant — and needs dinner too.

📏 30–50 cm when fully grown! ⏳ 10–15 years (often 20+)

Setting up a tank or pond?

Work out stocking, feeding amounts and water changes first. Go to the Fish Tank & Pond Planner →