Polystigma Cichlid

Polistigma Fish: A Detailed Guide

The Polistigma, also known as the Polished Tetra or the Bleeding Heart Tetra, is a dazzling freshwater fish prized for its vibrant coloration and peaceful demeanor. This shimmering fish is a captivating addition to any community aquarium.

Scientific Name: Pethia [Innesidia] polistiγμα (Pethia innesi polistigma)

Water Quality

Polistigmas are relatively adaptable, but providing optimal water conditions will ensure their health and vibrancy.

• Temperature: 72-82°F (22-28°C)
• pH Level: 6.0-7.5 (slightly acidic to slightly alkaline)
• GH Level: 5-12 dGH (soft to moderately hard water)
• KH Level: 4-8 dKH (moderately soft to moderately hard water)
• Filtration: Moderate water flow and good filtration are essential.

Feeding

Polistigmas are omnivores and thrive on a varied diet.

• High-quality flake food: This should be the base of their diet.
• Live or frozen brine shrimp, bloodworms, and daphnia: Offer these as a treat a few times a week.
• Blanched vegetables: Such as zucchini or cucumber, provide essential nutrients.

Tank Mates

Polistigmas are peaceful community fish and school best in groups of 6 or more. Ideal tank mates include:

• Other peaceful tetras (e.g., Neon Tetras, Ember Tetras)
• Corydoras catfish
• Rasboras
• Peaceful gouramis

Avoid housing them with larger, aggressive fish that could prey on them.

Substrates and Tank Decorations

• Substrate: Fine sand or gravel is ideal.
• Decorations: Polistigmas appreciate a well-decorated tank with hiding places. Use driftwood, smooth rocks, and live or artificial plants.

Suitable Plants

Live plants not only enhance the beauty of the aquarium but also improve water quality. Here are some good choices:

• Java Fern
• Hornwort
• Water Sprite
• Cryptocoryne

Sexing and Breeding

Sexing Polistigmas can be challenging. Females tend to be slightly larger and rounder than males. Breeding is possible in a well-conditioned tank with spawning mops. However, it’s generally not recommended for beginners due to specific breeding requirements.

Maximum Size and Longevity

• Maximum Size: Up to 1.2 inches (3 cm)
• Longevity: 3-5 years with proper care

Behavior

Polistigmas are schooling fish and spend most of their time in the middle and upper levels of the tank. They are active swimmers and display peaceful interactions with their tank mates.

Things to Consider Before Buying

• Tank Size: A minimum of a 10-gallon tank is recommended for a small school of Polistigmas.
• Water Parameters: Ensure you can maintain the appropriate water quality for these fish.
• Tank Mates: Choose peaceful community fish that won’t harass the Polistigmas.

General Information

Polistigmas are relatively easy to care for and suitable for beginner aquarists. Their vibrant colors and peaceful nature make them a popular choice for home aquariums.

Fun Fact

The red spot on the Polistigma’s body resembles a drop of blood, hence the nickname “Bleeding Heart Tetra.”