The Neon Tetra (Paracheirodon innesi) has a timid nature that matches its small size. Any sudden movement can startle them, causing them to dart around in panic. Being a schooling species, solitary living or even forming small groups of two or three can increase their sense of vulnerability. This is especially evident when cohabiting with other species. To avoid this issue, caretakers should note two key points:

Firstly, it's not advisable to mix numerous fish species solely for aesthetic reasons. If the living areas lack clear demarcation and the active zones overlap, energetic troublemakers could harass the Neon Tetras. Given their size, they can be at a disadvantage when repeatedly disturbed. Although they are agile, they can't endure repeated disturbances. Injuries or even fatalities are possible outcomes.

Secondly, it's best to provide an ample number of companions, taking into consideration the tank's actual capacity. From an aesthetic perspective, a large school of Neon Tetras swimming among aquatic plants creates a much stronger visual impact than a smaller group. Additionally, as a species that thrives in communal living, a larger group enhances the safety of each individual and helps them adjust more effectively to their new environment.

However, group living also has its drawbacks, particularly during disease outbreaks. one fish becomes ill and isn't isolated promptly, the "patient" mingling with the group can easily transmit pathogens to all members, rapidly exacerbating cross-contamination. This places a responsibility on caretakers to not only periodically observe but also be alert for any signs of trouble. Sick fish should be promptly removed and isolated for treatment, minimizing the risk of the entire group falling ill.

Regarding their diet, Neon Tetras are omnivorous. In the wild, they typically consume small insects or plant matter. In aquariums, they accept live daphnia, chopped bloodworms, or commercial pellets. The distinction lies in animal-based food accelerating their growth, particularly evident during their early stages. It's worth noting that fish raised on a meat-based diet tend to grow faster and stronger than those on a primarily plant-based diet.

For novice caretakers, a common mistake is forgetting to condition the water in advance. Keeping fish isn't as simple as filling a bucket from the tap. Apart from different fish species having specific temperature requirements, removing harmful substances from the water is crucial for helping fish acclimate to their new home more quickly.