Keeping Neon Tetras: The Classic Schooling Aquarium Fish
A guide to keeping neon tetras - the iconic small schooling fish, peaceful and brilliantly colored, that shines in a planted community tank and is a hobby favorite for beginners.
Neon tetras are the fish that launched countless aquariums - tiny, peaceful schoolers whose glowing blue-and-red stripes light up a planted tank. Hardy once established, inexpensive and endlessly popular, they are a classic beginner and community fish, best kept in a shoal where their color and natural behavior truly shine.
Is it right for you?
Neon tetras suit any beginner or community-tank keeper who wants color and peaceful movement. They are easy and cheap, as long as you keep them in a proper school.
System & Space
A small planted community tank suits them; they need swimming room for a shoal and plenty of plants and cover to feel secure. A group needs a modest tank, not a bowl.
Water & Temperature
They prefer warm, soft, slightly acidic water and stable conditions; established, mature tanks suit them better than brand-new ones. Avoid sudden parameter swings.
Stocking & Feeding
Keep at least six or more and feed small flakes and micro-foods; they are easy eaters. A shoal spreads out and colors up when it feels safe.
Health & Care
Hardy in stable, mature water; the main risks are adding them to an un-cycled tank and 'neon tetra disease'. Buy healthy stock and quarantine when you can.
Harvest & Enjoying Them
Ornamental - the reward is a shimmering, peaceful shoal that brings a planted tank to life; breeding them is a fun challenge for the dedicated.
Getting Started
Add a school of six or more to a cycled, planted, warm soft-water tank, and let them settle and color up.
Common Mistakes
Keeping too few (they school), adding them to a new un-cycled tank, and hard alkaline water are the usual mistakes.
FAQ
How many should I keep? At least six - they are schooling fish.
Good for beginners? Yes - once the tank is cycled and stable.