Medium-sized ornamental fish are fish suitable for placement in medium-sized aquariums. They are usually larger and require a certain amount of swimming space. Here are several common medium-sized ornamental fish species and their detailed descriptions:1. Surgeonfish (Molly):Appearance characteristi...
Cold-water ornamental fish are fish that are suitable for being placed in a room-temperature aquarium and do not require additional heating. These fish are typically from temperate climates and can survive and thrive in lower water temperatures. Here are several common cold water ornamental fish spe...