Everglades Pygmy Sunfish

The Everglades Pygmy Sunfish is one of the smallest centrarchid relatives in North America, rarely exceeding 3.5 cm. Males in breeding condition are stunning — their dark bodies are covered in iridescent blue-green spangles that flash under light. Females are a more cryptic mottled brown.

This species inhabits heavily vegetated, tannin-stained backwaters and swamps in Florida and southern Georgia. A nano biotope tank with blackwater conditions, dense planting, and leaf litter replicates its natural habitat.

Pygmy sunfish are not schooling fish — males hold small territories and spar with rivals using fin displays. They are micro-predators and must be fed live or frozen small invertebrates.

Water: 10–24°C, pH 5.5–7.5, GH 1–10; blackwater conditions ideal — peat or Indian almond leaves. Tank: minimum 30 L nano species tank, dense planting, leaf litter, dim or dappled lighting. Feeding: carnivore — live/frozen micro-worm, daphnia, baby brine shrimp, small cyclops. Breeding: male courts female with fin displays; eggs deposited on plant leaves; male may guard briefly. Compatibility: peaceful with similar-sized species; avoid boisterous fish that will outcompete for food.