The Cardinal Tetra, often considered the longer-lived and more colourful counterpart to the Neon Tetra, is a captivating freshwater fish known for its vibrant hues and delicate nature. Recognized for its striking blue and red coloration, the Cardinal Tetra is a shy and peaceful tetra species that thrives best in large groups of 12 individuals or more. It is crucial to maintain stable water parameters, as these tetras are sensitive, making them prone to stress and ich during and after transport. Peat filtration is recommended to mimic their natural habitat conditions, as Cardinals originate from soft, acidic waters in the Amazon basin. To enhance their stunning colours, setting up the aquarium with a dark substrate and providing a dense plant cover is advisable. With proper care and attention to their environmental needs, Cardinal Tetras can bring an enchanting and vibrant presence to a well-designed community aquarium.
