Betta stiktos Care Guide - Aquarium Setup, Diet & Breeding

Betta stiktos is a small, naturally occurring betta from the Betta splendens group. Its name refers to its spotted or marked appearance, and wild specimens typically show a restrained pattern of earthy body colours, dark markings and iridescent blue-green highlights rather than the exaggerated finnage of domestic Siamese fighting fish.

Betta stiktos is native to eastern Thailand in mainland Southeast Asia, particularly the Chanthaburi region and nearby coastal drainage systems. It occurs in shallow, slow-moving and seasonal freshwater habitats with dense marginal vegetation.

A single Betta stiktos should have an aquarium of at least 40 litres, with a footprint around 60 × 30 cm or larger; a pair or breeding group benefits from a substantially larger setup. Use a secure, gentle filter and leave some calm surface areas for bubble-nest building. Dark sand or fine rounded substrate, driftwood, leaf litter, floating plants and dense clumps of aquatic vegetation create the shaded, structured conditions this secretive fish favours. Keep the aquarium tightly covered because bettas are capable jumpers.

Up to about 5 cm (2 in) in total length. Males are generally slightly larger and have more developed fins than females.

This carnivorous micropredator prefers small aquatic and terrestrial invertebrates. Offer a varied diet of high-quality betta or micropellet foods supplemented with frozen or live daphnia, mosquito larvae, brine shrimp, blackworms and other suitably sized foods. Small portions fed regularly are preferable to large meals, and uneaten food should not be allowed to accumulate.

Betta stiktos is best kept as a species-focused fish, particularly when breeding. A single male can sometimes live with peaceful, similarly sized tankmates such as small rasboras, unobtrusive tetras, kuhli loaches or small corydoras, provided the aquarium has plenty of cover. Avoid other bettas, fin-nipping fish, boisterous species and similarly territorial gouramis; males may also quarrel with one another.

Betta stiktos is a bubble-nesting species. Condition a compatible pair with a varied diet of small live or frozen foods, then provide warm, calm water and floating cover beneath which the male can build his nest. After spawning, the male gathers the eggs into the nest and guards them until the fry become free-swimming. Remove the female after spawning if she is being harassed, and offer the fry very small foods such as infusoria before moving on to newly hatched brine shrimp.

Males are usually more vividly coloured, with stronger iridescent markings and longer, broader fins. Females tend to be shorter-bodied and less intensely marked, and mature females may show a visible ovipositor and a fuller abdomen when carrying eggs.