Steenfott Aquatics

Discover the World of Freshwater Aquarium Fish

Welcome to Steenfott Aquatics, a resource dedicated to freshwater aquarium hobbyists who want to learn more about the incredible diversity of fish available to keep in home aquariums.

Created by aquarium hobbyists and content creators behind the Steenfott Aquatics YouTube channel, this site is designed to help fishkeepers discover new species, understand their natural habitats, and learn how to successfully care for them in the aquarium.

Inside our Fish Library and Aquarium Community College, you'll find detailed guides covering freshwater fish such as tetras, corydoras catfish, cichlids, rainbowfish, loaches, rasboras, and many other fascinating species from around the world.

Whether you're searching for new fish to add to your aquarium, researching a species before purchasing it, or simply exploring the incredible biodiversity of freshwater fish, our goal is to provide clear, accurate, and hobbyist-focused information to help you succeed.

Aquarium Community College

Danio Fish: A Comprehensive Guide to the Genus Danio and Related Species
Danio fish are energetic freshwater fish known for their constant activity, striking patterns, and hardy nature. This guide explores danio biology, natural habitats, behavior, and expert care tips for keeping danios in aquariums.
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Badis Fish: A Comprehensive Guide to the Family Badidae
Badis fish are fascinating micro-predatory freshwater fish known for their striking breeding colors, territorial displays, and unique hunting behavior. This guide explores Badidae biology, natural habitats, and expert Badis care for aquariums.
- Badidae
- Badis
- Badis badis
- Badis Fish
- Dario
- Dario dario
- micro predator fish
- nano fish
- Scarlet Badis
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Pencilfish (Genus Nannostomus): A Comprehensive Guide
Pencilfish (genus Nannostomus) are elegant South American freshwater fish known for their slender bodies, peaceful nature, and unique surface-oriented behavior. This comprehensive guide explores pencilfish biology, natural habitats, and expert care tips for planted aquariums.
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Tetra Fish: A Comprehensive Guide to the Characin Fishes of the Aquarium Hobby
Tetra fish are among the most popular freshwater aquarium fish thanks to their vibrant colors, peaceful nature, and mesmerizing schooling behavior. This in-depth guide explores tetra evolution, natural habitats, behavior, and expert tips for successful tetra care in aquariums.
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Cichlid Fish: The Ultimate Guide to the Family Cichlidae
Cichlid fish are among the most diverse and fascinating freshwater fish in the world. This comprehensive guide explores cichlid evolution, behavior, habitats, and aquarium care for African and South American cichlids.
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6 Tetra Fish We Recommend for Aquariums in 2026
Looking for the perfect tetra for your aquarium in 2026? While there are dozens of species in the hobby, a few stand out for their color, personality, and reliability in community tanks. Here are six tetras we think deserve a spot in your aquarium right now.
- tetra fish
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Rainbowfish: A Beginner's Guide to Nature's Living Prisms
Rainbowfish are colorful, active schooling fish that make stunning additions to freshwater aquariums. This beginner’s guide covers rainbowfish care, tank setup, diet, and the most popular species.
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Lake Malawi Cichlids: A Beginner's Guide to Africa's Most Colorful Fish
Lake Malawi cichlids are some of the most colorful and fascinating freshwater fish in the hobby. From vibrant mbuna to graceful peacocks and haps, these African cichlids offer endless variety in behavior, color, and care. Learn how to set up the perfect tank, choose compatible species, and keep these stunning fish thriving.
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Lake Tanganyika Cichlids: A Beginner's Guide to Africa's Most Spectacular Fish
Discover the fascinating world of Lake Tanganyika cichlids — from their unique behaviors and stunning colors to the ideal aquarium setup for keeping them healthy. Learn about their natural habitat, water parameters, diet, breeding habits, and why these African cichlids are a favorite among advanced fishkeepers.
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