The Glass Bloodfin Tetra (Prionobrama filigera) is a long, slender species of tetra commonly characterized by their bright red fins and transparent bodies.
This tetra species will grow to reach 2 inches across on average and have a lifespan of 5+ years. While they can do well in a wide variety of tank conditions, these fish are very sensitive to fluctuations in water parameters. Never add Glass Bloodfins to a brand new or uncycled aquarium.
These fish do better when their surroundings mimic what this species might experience in the wild. They prefer a water temperature between 70 degrees Fahrenheit and 80 degrees Fahrenheit. While these fish do well in cooler water compared to other tropical fish, we recommend using a heater to prevent fluctuations in water temperature. They thrive in a pH range between 6.0 and 7.5, Live plants are always a welcome addition for these animals.
While a very small group can live in a 10 gallon, we recommend keeping a minimum of 6+ in at least 20 gallons of water. The larger there the school, the less shy these fish become.
Glass Bloodfins can become stressed easily if kept with particularly fast or nippy tankmates. They do best with slow-moving, docile, community fish.
Photo of an adult Glass Bloodfin by Chronotopian - Own work, CC BY-SA 3.0, for Wikipedia (English).