How to Care for Freshwater Fish

Get tips on caring for your freshwater fish and maintaining your freshwater aquarium.
Tropical fish community aquarium
Best Tankmates for Tropical Fish
Bristlenose fish
Do You Have Cannibalistic Fish?
A white goldfish in its tank.
70 Names for Your White Fish: Creative Ideas and Inspiration
Red tail catfish
Can You Keep a Catfish as a Pet?
marbled hatchetfish
Fish Species Starting With M: A Comprehensive Guide
Two silver arowana in a planted aquarium
12 Impressive Large Freshwater Aquarium Fish
School of Ember Tetras Hyphessobrycon amandae
Ember Tetra: Fish Species Profile
Scarlet badis dario dario
Scarlet Badis: Fish Species Characteristics and Care
Bubble Eye Goldfish
Bubble Eye Goldfish: Fish Species Profile
Tank school of goldfish
Types of Goldfish: Explore 13 Varieties from Comets to Fantails
Two fan tail goldfish in an aquarium
Fantail Goldfish: Fish Species Characteristics and Care
Tank full of Boesemani rainbow fish and bala shark
25 Vibrant Types of Rainbowfish to Brighten Your Aquarium
Skunk Cory
Skunk Cory: Fish Species Profile
Orange and white black-spotted fish swimming in aquarium
25 Small Fish Species Perfect for Your Freshwater Aquarium
Bright blue and pink beta fish swimming in fresh-water tank closeup
The 11 Easiest Fish to Take Care Of For New Fish Parents
Harlequin rasbora fish with yellow and black scales swimming closeup
Harlequin Rasbora: The Vibrant Jewel of Community Aquariums
Neon tetra fish with aqua blue stripe and red tail closeup
The Vibrant Neon Tetra: A Complete Species Profile for Enthusiasts
Coldwater Fish Species
11 Cold Water Fish Species Perfect for Your Freshwater Aquarium
Bristlenose Catfish
A Deep Dive into Bristlenose Pleco: The Ultimate Tank Cleaner
Platy fish with variegated pattern of purple and yellow glittery scales
Platy Fish Varieties (Xiphophorus spp.)
Guppy fish with orange fins swimming in tank
Guppy Fish: Essential Care, Breeding, and Aquarium Setup
Gold barb fish swimming with gold and black-spotted scales closeup
Barb: Fish Species Profile
Silver and green striped angelfish swimming in tank with underwater foliage
10 Types of Angelfish for Stunning Freshwater Aquariums
Betta fish with vibrant blue-purple and black scales swimming
Guide to Betta Fish: Care for the Siamese Fighting Fish
Cory catfish swimming in aquarium tank with white pebbles
Top 12 Corydoras Catfish Species to Enhance Your Aquarium
Gold Barb - Puntius semifasciolatus
Gold (Chinese) Barb Fish Species Profile
Yellow and black 3 spot gourami fish swimming
10 Captivating Gourami Fish Species for Your Aquarium
Illustration of the lifespan of popular aquarium fish
How Long Do Fish Live? Understanding Aquarium Fish Lifespans
Gourami fish with blue and orange striped scales swimming
Care and Breeding of Gourami Fish
White cloud mountain minnow fish with gray scales and orange fins closeup
Comprehensive Guide to White Cloud Mountain Minnow Care
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
Symphysodon Discus - Pompadour Fish
Pearl Danio, Danio albolineatus fish
Pearl Danio Fish Species Profile
Clown loach
Clown Loach Fish Species Profile
Stunning red killifish swimming in an aquarium.
Your Comprehensive Guide to Killifish Care and Species Diversity
Butterflyfish swimming above coral in an aquarium
Comprehensive Guide to Methylene Blue for Aquarium Fish
Swordtail fish profile
Swordtail Fish: A Comprehensive Beginner's Guide
Silver and black striped cichlid fish swimming in aquarium
Cichlids, a Large Family of Diverse Aquatic Life Spanning the Globe
Shubunkin goldfish in a tank
Shubunkin: Fish Species Characteristics and Care
Trichogaster leeri - Pearl Gourami
Pearl Gourami: Fish Species Characteristics and Care
Blood parrot showing small mouth
Blood Parrot Cichlid Fish Species
Pepper corydora sifting through substrate
11 Aquarium Catfish Species Perfect for Your Home Tank
Fish swimming in an aquarium tank
The Anatomy of Fish
Carinotetraodon travancoricus
Pea Puffer: Fish Species Profile
Cardinal tetra fish with shiny blue scales on top half and red scales on bottom half
Explore the Vibrant World of Cardinal Tetras
Amano shrimp sitting on a plant
Amano Shrimp Species Profile
Weather loach
Weather Loach for Your Aquarium
Cherry barb in an aquarium
Cherry Barb: Fish Species Profile
Puntius conchonius - Rosy Barb
Rosy Barb (Red Barb) Fish Species Profile
Triggerfish
Triggerfish Family Balistidae Profile
Oscar cichlid
Oscar: Fish Species Profile
Dalmatian Molly fish with black spots swimming near aquatic plants
Molly Fish Guide: Care, Diet, and Breeding Tips for Enthusiasts
Tiger Barb - Barbus tetrazona
Tiger Barb Fish: A Complete Species Profile for Enthusiasts
Goldfish in a tank
How to Take Care of Goldfish
dwarf gourami
Dwarf Gourami: A Comprehensive Guide to Care and Breeding
Siamese algae eater fish swimming upward with black stripe down side
Common Fish Names Beginning With 'S'
Betta fish foraging for food
How Much to Feed Your Betta Fish
Siamese Fighting fish swimming against a white background.
Commonly Asked Questions About Bettas
Two betta fish facing off
Betta Fish Behavior: Understanding Aggression and Prevention
Yellow and white koi fish swimming near water surface
Koi (Nishikigoi) Fish Species Profile
Congo Tetra Community Aquarium Fish
Congo Tetra: Fish Species Profile
Zebrafish (Danio rerio) aquarium fish
Zebra Danio: A Comprehensive Guide to This Popular Fish Species
Small forktailed rainbowfish near bottom of fish tank with pebbles
Forktailed Rainbowfish Species Profile

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Freshwater Fish Breeds Freshwater Aquarium Basics Freshwater Fish Health Freshwater Aquariums & Habitat Freshwater Aquarium Filters Freshwater Aquarium Pests