Apollo Betta
Betta apollon
A wild Thai hillstream betta that thrives in cool, shadowy, soft-water streams.

About
Found in the shaded hill-streams of Thailand, Betta apollon is one of those species that reminds you just how different the wild betta world is from the flowing-fin varieties most people picture. In its natural habitat, it hides among roots, leaf litter, and aquatic plants in the shallow margins of forest streams, though some individuals are also found wedged between boulders in faster-moving water. The water there runs cool, clear, and extremely soft, almost colourless, which is an important clue for anyone planning to keep this fish. Like other members of the wild betta group, it is a facultative air-breather, meaning it can gulp air directly from the surface when dissolved oxygen is low, an adaptation that suits its sometimes sluggish, leaf-littered microhabitats. This is a small species, barely reaching two and a half inches at most, so it does not demand a huge footprint, but it does ask for clean, soft, acidic water and a densely furnished tank with plenty of cover. It is not a fish for beginners, maintaining the specific water chemistry it needs takes some experience, but for hobbyists who enjoy keeping wild bettas, Betta apollon is a genuinely rewarding challenge.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Apollo Betta
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Apollo Betta get?
- The Apollo Betta reaches about 1–2.5" as an adult.
- What size tank does the Apollo Betta need?
- A minimum of 15 gallons is recommended for the Apollo Betta.
- What water parameters does the Apollo Betta need?
- The Apollo Betta does best with a temperature of 75–78°F, a pH of 5.5–6.5, hardness around 1–5 dGH.
- Is the Apollo Betta aggressive?
- The Apollo Betta is generally peaceful and suits a community tank with similarly calm tankmates.
- What does the Apollo Betta eat?
- The Apollo Betta is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- How long does the Apollo Betta live?
- With good care, the Apollo Betta typically lives 3-5 years.