Cardinal Toothcarp
Cyprinodontiformes sp.
Cardinal Toothcarp (Cyprinodontiformes sp.) — Easy care, Semi-aggressive, under Livebearer & Killifish. Minimum tank in the app: 15.9 US gal min; aim for 72–86°F and pH 6.8–8.2. The Cardinal Toothcarp is an engaging species ideal for aquarists looking to observe dynamic group interactions.

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Americas / Africa (varies)
- Africa
- South America
- Central America & Mexico
Regional colours match the stocking calculator’s origin map.
Cardinal Toothcarp Tank Setup
Aim for a spacious setup that includes plenty of plants and hiding spots to create a sense of security while allowing open swimming areas. A soft substrate is ideal for their comfort, and moderate lighting can help highlight their colours without causing stress. Water flow should be gentle to mimic their natural habitats, encouraging active swimming without overwhelming them.
What Do Cardinal Toothcarps Eat?
Feeding time can become competitive, so providing a varied diet is essential to ensure all individuals receive adequate nutrition. Their omnivorous nature allows for a mix of flake, frozen, and live foods, which can enhance their coloration and overall health.
Cardinal Toothcarp Tank Mates
Best paired with similarly sized, non-aggressive species that occupy different swimming zones, such as small tetras or rasboras. Risky combinations include larger, more aggressive fish that might intimidate or outcompete them for food. Maintaining a group of at least six is crucial to prevent stress and establish social hierarchies.
Are Cardinal Toothcarps Good for Beginners?
In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. A common error is underestimating their social needs; keeping fewer than six can lead to increased stress and aggression. neglecting water parameters, particularly pH and temperature, can adversely affect their health and behaviour.
Building a community? Run the full list through the stocking calculator before you add anything else.
Log tests and reminders in App-aquatic—free, same data you see here.




