Best Nano Fish for Small Tanks

Our top picks for tiny, peaceful fish perfect for tanks under 15 gallons.

Looking for tiny, peaceful fish perfect for tanks under 15 gallons? Here are the top picks from our species database, with adult size, minimum tank, and temperament. Tap any fish for its full care guide, then plan your tank with the stocking calculator.

• Assassin Snail (1.0", 5g min, Peaceful)
• Black Neon Tetra (1.5", 15g min, Peaceful)
• Celestial Pearl Danio (1.0", 10g min, Peaceful)
• Cherry Shrimp (1.5", 5g min, Peaceful)
• Chili Rasbora (0.7", 5g min, Peaceful)
• Ember Tetra (0.8", 10g min, Peaceful)
• Endler's Livebearer (1.0", 10g min, Peaceful)
• Ghost Shrimp (1.5", 5g min, Peaceful)
• Glowlight Tetra (1.5", 10g min, Peaceful)
• Hatchetfish (1.5", 15g min, Peaceful)
• Malaysian Trumpet Snail (1.0", 5g min, Peaceful)
• Neon Tetra (1.5", 10g min, Peaceful)
• Nerite Snail (1.0", 5g min, Peaceful)
• Pygmy Cory (1.0", 10g min, Peaceful)
• Ramshorn Snail (1.0", 5g min, Peaceful)
• Sparkling Gourami (1.5", 10g min, Peaceful)
• White Cloud Mountain Minnow (1.5", 10g min, Peaceful)

Related