Check out some of the best aquarium fish for beginners and for homes with children: In general, Tetras are tropical fish ...

Due to their iconic appearance, adaptability to different freshwater aquarium conditions, and peaceful schooling behavior, glowlight tetras are a highly sought-after choice for fish owners.

The Mexican tetra fish that lives in the rivers of Northern Mexico can heal its heart, while its cave-dwelling relative cannot A fish that can repair its heart may hold clues for future treatments ...