Molly Balloon - Kohaku Roundtail

Molly Balloon Kohaku Roundtail is a uniquely shaped freshwater livebearer prized for its compact “balloon” body form and refined Kohaku-style red and white colour pattern. This variety features a rounded, deep-bodied silhouette with soft white base tones contrasted by vivid red patches, creating a koi-inspired aesthetic in a peaceful aquarium fish. The rounded tail fin enhances its smooth, flowing appearance, making it a distinctive addition to well-maintained community aquariums.

Features of Molly Balloon Kohaku Roundtail

• Compact balloon-shaped body structure
• Kohaku-style red and white colour pattern
• Rounded, symmetrical roundtail fin
• Grows to approximately 6–8 cm
• Peaceful and social livebearer temperament

The best aquarium size for Molly Balloon Kohaku Roundtail

A minimum aquarium size of 80 litres is recommended due to their active nature despite their compact form. A 100 litre aquarium or larger is ideal for maintaining stable water conditions and allowing comfortable group living. These mollies thrive in small social groups with a balanced male-to-female ratio.

Tank Mate Compatibility for Molly Balloon Kohaku Roundtail

• Guppy
• Platy
• Swordtail
• Corydoras Catfish
• Bristlenose Catfish

Diet for Molly Balloon Kohaku Roundtail

Molly Balloon Kohaku Roundtail is an omnivore with a strong need for plant-based nutrition. A high-quality flake or sinking pellet food should form the staple diet, supplemented with spirulina-based foods to support digestion and colour health. Occasional live or frozen foods such as brine shrimp and daphnia provide enrichment. Blanched vegetables like zucchini, spinach, and cucumber are highly beneficial. Feed 1–2 times daily in small portions to avoid overfeeding.

Aquarium Setup Molly Balloon Kohaku Roundtail

Aquarium Filtration

Moderate filtration is recommended to maintain clean, well-oxygenated water. A sponge filter or quality internal filter is suitable, ensuring gentle flow due to their compact body shape.

Aquarium Plants

Hardy plants such as Vallisneria, Anubias, and Java fern are ideal, providing cover and helping maintain water quality without being easily disturbed.

Aquarium Lighting

Moderate lighting enhances the red and white Kohaku contrast while supporting healthy plant growth.

Aquarium Heating

Maintain a stable temperature between 24–28°C using a reliable aquarium heater to ensure consistent tropical conditions.

Aquarium Substrate

Fine gravel or sand substrate is suitable, offering a natural aesthetic and supporting planted aquascapes.

Aquarium Decorations

Include driftwood, smooth rocks, and planted areas to provide structure and shelter while preserving open swimming space.