Quick answer: Neon tetras (Paracheirodon innesi) are tiny, peaceful schooling fish from the Amazon basin, famous for their glowing blue stripe and red tail. They grow to about 1.5 inches (4 cm), and with good care they can live 5 years or more, though many only reach 2 to 3 Read more
Quick answer: A standard 55 gallon fish tank measures 48 x 13 x 21 inches (122 x 33 x 53 cm), holds about 208 liters, and weighs around 75 to 80 pounds empty and roughly 600 to 650 pounds once it’s filled with water, substrate and decor. That weight means Read more
Quick answer: Silver dollar fish are peaceful, disc-shaped South American schooling fish, related to pacu and piranhas but completely gentle. The common silver dollar (Metynnis argenteus) and the spotted silver dollar (Metynnis lippincottianus) grow to about 6 inches (15 cm), while the red hook silver dollar gets much bigger. They Read more
Quick answer: A standard 5 gallon fish tank measures about 16 x 8 x 10 inches (41 x 20 x 25 cm), holds about 19 liters, and weighs roughly 55 to 62 pounds once it’s filled with water, gravel and decor. It’s the ideal size for one betta, a colony Read more
Quick answer: Bladder snails (Physella acuta, also called Physa acuta) are tiny freshwater snails with a thin, see-through, teardrop-shaped shell that opens on the left side. They grow to about 0.4 to 0.6 inches (1 to 1.5 cm), live a few months to about a year, and lay small, clear Read more
Quick answer: Planaria are small free-living flatworms, usually 2 to 15 mm long, with a triangle-shaped head and two dark eyespots that make them look cross-eyed. They glide smoothly over the glass and substrate, and they’re white, gray or brown. In a fish-only tank they’re mostly a harmless nuisance, but Read more
Quick answer: Cherry shrimp (Neocaridina davidi, also called red cherry shrimp or RCS) are small, hardy freshwater shrimp that grow to about 1 to 1.5 inches (2.5 to 4 cm) and live 1 to 2 years. They do best in a cycled, planted tank of 5 gallons or more, at Read more
Quick answer: Malaysian trumpet snails (Melanoides tuberculata, also called red-rimmed melania or MTS) are small, cone-shaped freshwater snails that grow to about 1 inch (2.5 cm) in aquariums and live roughly 1 to 2 years. They spend the day buried in the substrate, eat leftover food, detritus and algae, and Read more
Quick answer: Cherry barbs (Rohanella titteya, formerly Puntius titteya) are small, peaceful barbs from Sri Lanka that grow to about 2 inches (5 cm) and live 4 to 6 years. Keep a group of at least 6 in a planted tank of 20 gallons or more, at 73 to 81 Read more
Quick answer: A standard 10 gallon fish tank measures 20 x 10 x 12 inches (51 x 25 x 30 cm), holds about 38 liters, weighs around 11 pounds empty and roughly 100 to 115 pounds once it’s filled with water, gravel and decor. It’s a good size for one Read more