How to Care for Freshwater Fish

Get tips on caring for your freshwater fish and maintaining your freshwater aquarium.
Tank school of goldfish
Learn About 12 Different Types of Goldfish
Two fan tail goldfish in an aquarium
Learn all About the Fantail Goldfish
Tank full of Boesemani rainbow fish and bala shark
20 Colorful Species of Rainbowfish
Skunk Cory
Learn All About the Skunk Cory Fish
Orange and white black-spotted fish swimming in aquarium
22 Small Fish Species for Your Freshwater Aquarium
Red tail catfish
Can You Keep a Catfish as a Pet?
Bright blue and pink beta fish swimming in fresh-water tank closeup
Low-Maintenance Freshwater Fish for Beginners
Harlequin rasbora fish with yellow and black scales swimming closeup
How to Care for the Vibrant Harlequin Rasbora
Neon tetra fish with aqua blue stripe and red tail closeup
From the Amazon and Captive Breeders: Neon Tetra
cold water fish illustration
Cold Water Fish Species for Your Freshwater Aquarium
Bristlenose Catfish
Everything You Need to Know About the Bristlenose Pleco
Platy fish with variegated pattern of purple and yellow glittery scales
The Eye-Catching Colors and Patterns of the Platy Fish
Guppy fish with orange fins swimming in tank
Guppy Fish Species Profile
Gold barb fish swimming with gold and black-spotted scales closeup
Barb Species: A Lively, Peaceful Fish
Silver and green striped angelfish swimming in tank with underwater foliage
10 Variations in Freshwater Angelfish
Betta fish with vibrant blue-purple and black scales swimming
Learn Everything You Need to Know About Betta Fish
Cory catfish swimming in aquarium tank with white pebbles
What Catfish Are Good in Freshwater Aquariums?
Gold Barb - Puntius semifasciolatus
Feeding, Care, and Habitat of the Freshwater Gold Barb
Yellow and black 3 spot gourami fish swimming
Discover Different Gourami Species for Aquariums
Illustration of the lifespan of popular aquarium fish
Different Fish Lifespans According to Species and Aquarium Conditions
Gourami fish with blue and orange striped scales swimming
How to Keep and Breed Gourami Aquarium Fish
White cloud mountain minnow fish with gray scales and orange fins closeup
All About the White Cloud Mountain Minnow
Neon Tetras in Planted Fish Tank
Which Freshwater Fish Species Are Best for Heated Tanks?
Silver scaled goldfish swimming in tank closeup
15 Classic Goldfish Names
Pompadour fish with white spots on red and yellow scales and fins
Learn About the Symphysodon Discus, Also Known As Pompadour Fish
Pearl Danio, Danio albolineatus fish
How Do You Care for the Pearl Danio Fish?
How to Breed Egg-Scatterer Tropical Fish
Learn How to Breed Egg Scattering Tropical Fish
Clown loach
Invite a School of Clown Loaches to Join Your Aquarium Community
Stunning red killifish swimming in an aquarium.
Learn Everything You Need to Know About the Killifish
Butterflyfish swimming above coral in an aquarium
Methylene Blue as Anti-Fungal & Anti-Parasitic Drug for Aquarium Fish
Swordtail fish profile
Swordtail Fish Species Profile
Silver and black striped cichlid fish swimming in aquarium
Most Cichlids are Suited for the Home Aquarium, but not with all Fish
Shubunkin goldfish in a tank
Learn About the Shubunkin Goldfish
Trichogaster leeri - Pearl Gourami
How to Feed, Breed and Care for Pearl Gourami
Blood parrot showing small mouth
The Blood Parrot Cichlid Fish Is a Controversial Hybrid
Pepper corydora sifting through substrate
11 Top Catfish Species for Your Aquarium
Fish swimming in an aquarium tank
Learn the Anatomy and Physiology of Aquarium Fish
Carinotetraodon travancoricus
Pea Puffer Fish Species Profile
Cardinal tetra fish with shiny blue scales on top half and red scales on bottom half
Learn Why the Cardinal Tetra Is a Popular Aquarium Fish
Amano shrimp sitting on a plant
Amano Shrimp Species Profile
Weather loach
Would a Weather Loach Be a Good Addition to Your Aquarium?
Cherry barb in an aquarium
Learn All About the Cherry Barb
Puntius conchonius - Rosy Barb
Rosy Barb: A Freshwater Aquarium Fish That Enjoys Company
What Are Triggerfishes and How to Identify One?
Oscar cichlid
Oscar: Fish Species Profile
Breeding The Original Tropical Fish, The Paradise Fish
Paradise Fish Are the Easiest of the Bubble Nest Builders to Breed
Mollie fish with gray and black-spotted scales swimming near foliage closeup
Mollies: What You Need to Know to Keep Them Healthy
Tiger Barb - Barbus tetrazona
Use These Tips to Care for Tiger Barb Fish
Goldfish in a tank
Learn How to Take Care of Goldfish
Three Stripe Cory Fish
Adding Three Stripe Cory to Your Aquarium Community
dwarf gourami
The Dwarf Gourami: Caring for Tropical Fish
Siamese algae eater fish swimming upward with black stripe down side
Common Fish Names Beginning With 'S'
Betta fish foraging for food
Learn How Much to Feed Your Betta Fish
Siamese Fighting fish swimming against a white background.
Answers to Commonly Asked Questions About Bettas
Two betta fish facing off
Reasons Why Betta Fish Fight and How to Stop It
Yellow and white koi fish swimming near water surface
Koi Fish Species Profile
Contgo Tetra Comunity Aquarium Fish
These Are the Reasons You Should Have a Congo Tetra Fish
Zebrafish (Danio rerio) aquarium fish
Zebra Danios: Among the Easiest Fish to Keep in Aquariums
Small forktailed rainbowfish near bottom of fish tank with pebbles
Tips for Caring for and Breeding the Forktail Rainbow Fish
The South American Leaffish: Not for Beginners