A minimum tank size of 60 liters (15 gallons) is recommended for a small school of Lemon Tetras. These fish are social and thrive in groups of at least six to eight individuals, so providing enough space for them to swim and interact is essential.

A dark, sandy substrate helps to mimic the natural riverbeds of the Amazon. Incorporate plenty of live plants such as Java Fern, Amazon Swords, and Anubias to provide hiding spots and create a natural environment. Driftwood and leaf litter can also help to soften the water and add tannins, which are beneficial for these tetras.

 

Amapa Tetras hail from the warm, nutrient-rich waters of the Amapa region in northern Brazil, where they thrive in densely vegetated, slow-moving streams and rivers. These habitats are characterized by soft, slightly acidic water with a pH range of 5.5 to 7.0 and temperatures typically between 22-28°C (72-82°F). The fish in these environments benefit from the shelter provided by submerged vegetation and driftwood, creating a peaceful and secure habitat for their schooling behavior.

In 2006, renowned ichthyologist Heiko Bleher made a discovery. While exploring the intricate waterways of the Amazon, Bleher stumbled upon a new species of the widespread Paracheirodon genus, which includes the well-known Neon Tetra and Cardinal Tetra. This new species, found in the Rio Purus system south of the Amazon River, has captured the interest of fish enthusiasts and scientists alike.

 Rummynose tetras are a beautiful and hardy species of fish that can make a great addition to any home aquarium. With proper care, they will thrive and bring years of enjoyment.

The Cardinal Tetra diet in the wild consists of crustaceans and small worms. To provide a similar diet in the aquarium is easy. Live foods such as bloodworm, daphnia and other similar live foods will accepted along with a variety of dry foods with quality ingredients.

Both Neon and Cardinal Tetras originate from South America. Though most you will find in aquariums will be captive breeds. This makes them more tolerant of water conditions.