Freshwater angel fish are triangular in shape and typically grow to be a few inches in length. They come in various colors like gold, silver, chocolate, zebra, and black. Their triangular bodies help them hide among aquatic plants. There are several types of angel fish distinguished by their color patterns, including gold, zebra, silver, smoky, and black varieties. Proper care of angel fish requires a large freshwater aquarium between 20-29 gallons with a water temperature of 22-27°C, pH of 6.5-6.9, and at least 20% weekly water changes. Angel fish should be fed flakes or cichlid food two to three times per day.