Fish Profiles: A Journey into the Aquatic World


Hello, fellow fish enthusiasts! I’m Oscar Henderson, a retired ichthyologist, and a lifelong fish keeper. My passion for aquatic life started when I was just a child, peering into Oregon’s beautiful rivers and lakes. This fascination grew into a career and now, a delightful retirement hobby.

Today, I’m thrilled to share insights into the enchanting world of aquarium fish. From the vibrant colors of saltwater species to the gentle grace of freshwater fish, each one holds a special place in my heart and my aquariums. Let’s dive in!

Saltwater Fish

Saltwater fish are a marvel of nature, displaying an array of vivid colors and intriguing behaviors. They’re known for their unique adaptations to marine environments, which make them fascinating yet challenging pets.

Clownfish: These orange and white beauties are synonymous with saltwater aquariums. Hardy and relatively easy to care for, they’re a great choice for beginners.

A vibrant clownfish swimming among sea anemones in an aquarium

Blue Tang: Popularized by movies, the blue tang is a stunning blue and yellow fish that requires a larger tank and specific care.

A blue tang fish, with its striking blue body and yellow tail, swimming in a coral-rich aquarium.

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Freshwater Fish

Freshwater fish offer a range of species suitable for beginners to experts. They’re known for their adaptability and the ease with which they can be cared for.

Betta Fish: With their flowing fins and bright colors, bettas are a favorite. However, they require specific water conditions and individual housing

A betta fish, displaying its vibrant red and blue colors, in a planted aquarium.

Goldfish: Often the first pet for many, goldfish are hardy and can grow quite large, requiring more space than usually anticipated.

group of goldfish in a spacious, well-planted tank, showcasing their orange and white patterns.

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Most Popular Aquarium Fish

In this section, I’ll introduce you to some of the most beloved aquarium fish, combining the best of both saltwater and freshwater worlds.

Guppies: Known for their bright colors and easy breeding, guppies are a joy to keep. They’re small, active, and can adapt to a variety of water conditions.

school of colorful guppies, with their distinctive tails, swimming in a lively community tank.

Angelfish: A staple in many freshwater tanks, angelfish are majestic with their long fins and diverse color patterns. They do well in larger groups and need plenty of vertical space.

Angelfish with striking black and white stripes, gracefully swimming among tall aquatic plants in an aquarium.


The world of fishkeeping is a never-ending adventure, filled with beauty, learning, and an ever-growing appreciation for nature’s wonders. Whether you’re setting up your first tank or adding to an existing collection, each fish brings its own story and charm to your aquatic haven. I encourage you to explore further and immerse yourself in the joy of fishkeeping. Happy fishkeeping!