Samurai Gourami
The samurai gourami, also called Vaillant’s chocolate gourami after biologist Leon Vaillant (from way back in 1888), is a gem of the planted aquarium. In nature, this species prefers low pH and low light and will not adapt well to hard water with high pH. The samurai gourami is peaceful, and a small school of these will provide a lot of interesting interaction as the males compete for the females. This is one of the few species in nature where the females are the more colorful gender. The bright red pattern of the female looks a bit like the polished decorative armor of an ancient Japanese warrior.
We recommend the purchase of at least a pair of these beautiful fish. The female will display her colors with a male present, and both will be much happier pet fish.
Quick Facts
| Feature | Detail |
|---|---|
| Origin | Planted aquariums, low pH, low light environments |
| Water Preference | Low pH, soft water; not suitable for hard water with high pH |
| Behavior | Peaceful; males compete for females in small groups |
| Coloration | Females are more colorful with bright red patterns resembling ancient Japanese armor |
| Recommended Pairing | At least one male and one female for optimal color display and happiness |
FAQ
What is the ideal water condition for samurai gourami?
Samurai gourami prefer low pH and low light environments. They do not adapt well to hard water with high pH and should be kept in soft, acidic water.
Are samurai gourami aggressive or peaceful?
Samurai gourami are peaceful fish. Males may compete for females, but overall they are calm and suitable for community tanks with proper group size.
Which gender is more colorful?
The female samurai gourami is more colorful, displaying a bright red pattern that resembles ancient Japanese warrior armor.

Owen Hodges –
Bought a pair for my planted tank. The female showed off her vibrant red pattern when the male was present. The fish are calm and add a nice visual element to the tank. Perfect for a low-light setup with soft water.
Joe Vance –
First time keeping gourami and this species was a great choice. The female’s color really stands out. I kept them in a 10-gallon with low pH and soft water. They seem happy and active.
Ruth Fraser –
The samurai gourami are stunning. I have a pair now and the female displays her colors beautifully when the male is around. They don’t stress the tank and are easy to maintain in a planted environment.