Neon Tetra

The Neon Tetra is one of the most recognizable and popular fish in the freshwater hobby, famous for its bright, iridescent blue and red stripes.

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Neon Tetra Care Guide

 

 

Tank Setup and Water Parameters

 

Neon Tetras are relatively hardy but are sensitive to unstable conditions, making a fully cycled and mature tank essential.

• Minimum Tank Size: 10 gallons is the minimum for a small school, but 20 gallons is preferred for stability and swimming space.
• Schooling: They are shy and stressed when alone. Always keep a school of at least 6-10 Neon Tetras; more is better to see their natural behavior.
• Temperature: Stable tropical temperatures: 72°–78° F (22°–26° C).
• pH Level: Slightly acidic to neutral water is ideal, with a pH of 6.0 to 7.0. They are not as tolerant of highly acidic water as their cousin, the Cardinal Tetra.
• Water Hardness: Soft to moderately soft water (up to 10 dGH).

 

Habitat and Environment

 

Mimicking their shaded, Amazonian streams helps them thrive and intensifies their colors.

• Lighting: They prefer subdued lighting. Use live or floating plants (like Water Lettuce or Frogbit) to diffuse overhead light.
• Decor: Use a dark substrate (like black sand) to enhance their stripes. Add plenty of cover using dense live plants, driftwood, and rocks to create hiding spots and break up sight lines.
• Filtration: A good filter (sponge or HOB with low flow) is necessary. Ensure the filter intake is covered with a sponge, as these small fish can be sucked in.

 

Diet and Feeding

 

The Neon Tetra is an omnivorous micropredator in the wild.

• Staple Diet: High-quality micro-pellets or small flake food are suitable.
• Supplementation: Their health and coloring benefit greatly from a varied diet. Supplement their flakes with:
  • Frozen or live Brine Shrimp
  • Frozen or live Daphnia
  • Small, crushed Freeze-dried Bloodworms
• Feeding Schedule: Feed small amounts 2-3 times per day—only what they can consume in under two minutes.

 

Compatibility

 

Neon Tetras are peaceful and do well in community tanks with other non-aggressive, similarly sized fish.

• Good Tank Mates: Corydoras catfish, Otocinclus, Rasboras (Harlequin or Chili), Dwarf Gourami, and other small, peaceful Tetras.
• Avoid: Large Cichlids (like full-grown Angelfish), aggressive barbs, or any fish large enough to eat a small Neon Tetra.