Freshwater

Bumblebee gobies (Brachygobius species) are tiny, black-and-yellow striped fish that perch on rocks and driftwood like miniature bumblebees. They are charming, hardy once settled, and perfect for small tanks, but they have two quirks that catch beginners out: they need brackish water to thrive, and many only eat live or frozen foods. Here is how

Mystery snails (Pomacea bridgesii) are big, colorful, peaceful freshwater snails that keep the tank clean and are fun to watch as they glide along glass, plants and substrate. They are also one of the most searched-for invertebrates in the hobby, and for good reason: they are charming, but they have specific needs that many keepers

The pearl gourami (Trichopodus leerii) is one of the most elegant freshwater fish you can keep. Its body is covered in tiny pearl-like dots, a dark lateral stripe runs along its side, and males develop a glowing orange to red throat and chest in breeding condition. Add long thread-like pelvic fins and a calm personality,

Goldfish are sold as easy starter pets, but proper goldfish care is more demanding than most people expect. They grow large, produce a lot of waste, and can live 10 to 20 years, so a bowl or small tank is a slow death sentence. Give them a big, well-filtered tank (or a pond), a simple

Nerite snails are among the best algae-eating invertebrates in the hobby. They clean glass, rocks and decor, they do not overbreed in fresh water, and they come in striking patterns like zebra, tiger and horned. But they have specific needs, and many are lost in the first weeks because they starve, escape, or are dropped

Freshwater angelfish (Pterophyllum scalare) are among the most recognizable aquarium fish in the world. Tall, graceful and surprisingly intelligent, they are also cichlids, which means they have a predatory streak and strong opinions. Good angelfish care comes down to a tall tank, stable warm water, sensible tank mates and a varied diet. This guide covers

Cherry shrimp are one of the most popular freshwater invertebrates, and for good reason. They are tiny, bright red, constantly busy, and they clean up algae and leftover food. They also breed readily in a stable tank, so a handful can become a thriving colony. They are often sold as a “beginner” animal, but they

Axolotls (Ambystoma mexicanum) are fully aquatic salamanders that need a cool, clean, gently filtered tank of at least 20 gallons long, water kept between roughly 60 and 68°F, and a diet of worms and sinking pellets. They are not fish, they cannot live in a heated tropical tank, and they are far more sensitive to

Apistogramma, often called “apistos,” are small South American dwarf cichlids with big personalities and spectacular fin colors. They stay small, breed in caves and are among the most rewarding fish a freshwater hobbyist can keep. They are also fussier than most community fish. This apistogramma care guide covers what they really need. Overview and Appearance

The German blue ram (Mikrogeophagus ramirezi, also sold as the blue ram, butterfly cichlid, or Ramirez’s dwarf cichlid) is one of the most beautiful small fish in the hobby. It’s also one of the most commonly lost. German blue ram care is demanding: they need warm, clean, stable water, a mature tank and careful feeding,