The "kings" of freshwater aquariums, Discus fish are known for their stunning looks. With stable warm temperatures and clear ...

These fish can display a spectrum of colors, from deep blues and greens to bright reds and oranges. Their distinctive round shape and intricate patterns make them a centerpiece in any aquarium. 3.

These are the prettiest freshwater fish, from vibrant brook trout and pumpkinseed sunfish to majestic lake sturgeon. Check out how these species made our list!

Some aquariums are meant to be used as saltwater tanks and others as freshwater tones. Making this choice should be your first step when thinking about buying a new 10-gallon aquarium.