How to Care for Freshwater Fish

Get tips on caring for your freshwater fish and maintaining your freshwater aquarium.
Leech on the back of a fish
How to Treat Leeches in Freshwater Fish
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
Koi in koi pond
Everything You Wanted to Know About Koi Ponds
Pepper corydora sifting through substrate
11 Top Catfish Species for Your Aquarium
Two Pictus catfish in an aquarium
Learn All About the Pictus Catfish
A 15 year old comet goldfish in a 100 gallon tank
Learn All About the Comet Goldfish
two silver arowena fish in water
Silver Arowana Fish Species Profile
fish name ideas
57 Great Name Ideas for Your Pet Fish
Stunning red killifish swimming in an aquarium.
Learn Everything You Need to Know About the Killifish
Axolotl in the water
What Kind of Water Is Safe for Pet Axolotls?
Fish In Aquarium
How to Keep Your Aquarium Fish Healthy - the 10 Top Tips
Tiger barb or Sumatra barb Puntius tetrazona tropical aquarium fish
What Is the Scientific Name for Your Favorite Fish With the Letter T?
low-maintenance aquarium
Determine the Perfect Timing for Your Aquarium Lights
Betta fish
How Long Do Bettas Usually Live and How Do You Keep Them Healthy?
Beard Algae
How to Remove Beard Algae From Your Aquarium
hermit crab with legs out
What to Do If Your Hermit Crab Loses a Leg
A ludwigia repens without characteristic red leaves, while beautiful, may be a sign of low light or insufficient nutrients
The Stunning Red Ludwigia Repens: Use in an Aquarium
Hermit Crab
The Miracle of Molting: Preparation Signs in a Hermit Crab
hermit crab in shell
How to Choose Shells for Your Hermit Crabs
Betta swimming in planted aquarium fish tank
What Plants are Safe for Betta Fish?
Betta fish foraging for food
Learn How Much to Feed Your Betta Fish
Betta fish sleeping on leaf
Is My Betta Sleeping Too Much?
Goldfish in a tank
Learn How to Take Care of Goldfish
Aquarium with cichlids fish from lake malawi
How to Stock an Aquarium With Different Levels of Fish
Blood parrot showing small mouth
The Blood Parrot Cichlid Fish Is a Controversial Hybrid
Fishbowl and an aquarium on a sideboard
Tips to Determine the Sex of Your Fish
Guppies
Raising Aquarium Fish in Hard Water Conditions
An aquarium lit dynamically by LED lights
Who Wins the War for Dynamic Aquarium Lighting?
Orange fish swimming in glass fishbowl
Clean Fishbowls Regularly to Keep Fish Healthy
Lovely little girl admiring fish in aquarium
How to Buy the Perfect Aquarium for a Child
aquarium tank
Get the Specs on Your Fish Aquarium
Goldfish Swimming In Aquarium
How and Why You Should Seed a New Aquarium
Pool test kit
Chlorine vs. Chloramine: What's in Your Water?
mini aquatic plants landscape for sale
Lighting Requirements for Plants in Community Aquariums
Fishes eating in aquarium
Feeding Your Aquarium Fish the Right Type of Food
beautiful planted freshwater aquarium
Why Use Plastic Plants in Your Aquarium When You Can Use Real Ones?
A child looking at a fish tank
Learn How to Plan an Aquarium Before You Buy It
bubbles on top of fish tank
Understanding Aquarium Water Foam
Pebbles on a river bed. Reflections and ripples on the surface.
Can I Use Outdoor Gravel or Rocks in an Aquarium?
Nutrafin Aquarium Water Test Kit
Test Your Aquarium Water to Keep Fish Healthy
Feeding goldfish in the aquarium at home. Fish rock and plants in the background
A Short Primer on the Nutrition Fish Need to Eat
Killifish Fry
How to Cull Your Freshwater Aquarium
Little fish in fish tank or aquarium, gold fish, guppy and red fish, fancy carp with green plant, underwater life.
Can Fish Sense Hunger, Low Oxygen, and How Do They Swim Straight?
Live Planted Aquarium
Why Live Aquatic Are Plants Better Than Plastic Plants
Fish Swimming In Aquarium
Bacterial Bloom: Understanding What It Is and How to Fix It
Single piranha in a fish tank
Is Your Fish Omnivore, Herbivore or Carnivore?
angelfish in an aquarium
Acriflavine for Aquarium Fish
fish swimming in aquarium
Aquarium Fish Go Missing for a Variety of Reasons
Girl holding goldfish in plastic bag
How to Safely Add Fish to a Tank to Prevent pH Shock
Community Aquarium - 80 Gallon
Tank Level Preferences for Different Aquarium Species
Cute Puffer Fish with Black and White Spots
The Seven Types of Fish Mouths and How They Are Used
Oil slick on water
How to Get Rid of Pesky Oil Slicks in Your Fish Tank
Aquarium with plants and clean water and fish swimming
Cleaning Algae From Aquarium Plants
Betta Bowl
How Many Bettas Can Live Together in the Same Tank?
Live Food - Mosquito Larvae
Save Money by Collecting Live Food For Your Fish
Siamese Fighting fish swimming against a white background.
Answers to Commonly Asked Questions About Bettas
Betta Fish
The Best Tank, Temperature and Water for a Betta Fish
Fish Swimming In Aquarium
Choose the Right Size of Aquarium Equipment for Your Needs
Rasbora Fish in an Aquarium
How to Upgrade an Aquarium: Moving Fish to a New Tank
Hiding_Spot_Eric_Savage.jpg
What Makes My Fish Want to Hide?
home aquarium in a modern home
Aquarium Heaters Must Have Proper Heat Distribution to Benefit Fish
A healthy freshwater aquarium with a variety of fish and decor
How Does Limestone Affect the pH of Aquarium Water?
New fish in a plastic bag of water
Help New Fish Feel at Home in Your Aquarium