Aquarium fishes: Characins

Optimal Tank Conditions for Rummy Nose Tetras

September 30, 2024June 9, 2021 by Oleg

The rummy nose tetra is a captivating addition to any aquarium, known for its striking appearance and peaceful demeanor. This small fish reaches about 4.5 cm in length and features a distinctive bright red spot on its head, while its fluke displays beautiful black and white stripes against a silvery body.

Due to its friendly nature, the rummy nose tetra makes an excellent tank mate for other peaceful fish, such as neon tetras or guppies. This species thrives in groups, so it’s best to keep them in schools of at least six to promote their social behavior and overall well-being.

Your Complete Red Bellied Piranha Care Guide: Size and More

September 30, 2024March 29, 2021 by Oleg

The red-bellied piranha is a predatory freshwater fish belonging to the Serrasalmidae family, which includes some of the most recognized piranha species. Often sensationalized by Hollywood as bloodthirsty predators, many wonder just how dangerous these fish really are. This article will explore their natural habitat, hunting behaviors, care requirements for aquarium keeping, and whether they can coexist with other fish species in a tank setting.

The Mighty Pacu: A Guide to South American Freshwater Giants

September 30, 2024March 13, 2021 by Oleg

The pacu fish (Colossoma macropomum) is a freshwater species native to South America, renowned for its impressive size and distinctive appearance. With its robust body and unique teeth that resemble human molars, the pacu captures the attention of aquarium enthusiasts and visitors to public aquariums alike. Due to their large size and specific care needs, pacus are best suited to large aquarium setups or specialized public displays.