multicolored fish swimming in tank

Caring for Fish & Aquariums

Learn how to care for your fish and aquarium with our best tips and advice.
Goldfish being fed by a male child and male senior
7 Low-Maintenance Pets for Busy People
Oscar cichlid
Oscar: Fish Species Profile
Swordtail fish profile
Swordtail Fish: A Comprehensive Beginner's Guide
two silver arowena fish in water
Silver Arowana Fish Species Profile
Goldfish bubbles
Understanding and Overcoming Gas Bubble Disease in Fish
Fishbowl and an aquarium on a sideboard
Convert a Freshwater Aquarium to Saltwater Aquarium
Black and White Striped Fish in Fish Tank
How to Quickly Lower High Nitrates in Your Aquarium
Saltwater Aquarium
Controlling Algae in Your Saltwater Aquarium
goldfish in aquarium
Swim Bladder Treatment: Solutions for Aquarium Fish Health
Aquarium with blue, orange and blue-striped fish swimming in front of underwater leaves
Guidelines for Stocking Your Aquarium
Guppies
Hard Water and Aquarium Fish
White cloud mountain minnow fish with gray scales and orange fins closeup
Comprehensive Guide to White Cloud Mountain Minnow Care
Gobies fish with orange tail and yellow head
Reef Safe Saltwater Aquarium Fish
Gold barb fish swimming with gold and black-spotted scales closeup
Barb: Fish Species Profile
Red algae (Peyssonnelia squamaria) and member of Serpulidae's family on a sponge
Aquarium Red Slime Algae Causes and Solutions
An aiptasia anemone
Eliminating Aiptasia Anemones From Saltwater Aquariums
Goldfish Swimming In Aquarium
How and Why You Should Seed a New Aquarium
Blue legged hermit crab
Reef Tank Janitors: Hermit Crabs and Snails
Leaffish
South American Leaffish Species Profile
Stunning red killifish swimming in an aquarium.
Your Comprehensive Guide to Killifish Care and Species Diversity
Girl using a chemical test kit to measure the quality of water in a home aquarium
Aquarium Water Parameters to Control for Healthy Fish
aquarium with fish and coral
How to Build Your Own Aquarium Chiller
Black widow tetra
Black Widow Tetra Fish Species Profile
A phosphate remover we recommend on a blue background
The 7 Best Phosphate (PO4) Removing Products, According to a Veterinarian
A child looking at a fish tank
What to Know Before Buying an Aquarium
Amoeba
How to Culture Your Own Infusoria at Home
Botia lohachata - Yo Yo Loach
Yoyo Loach Fish: A Comprehensive Species Profile
Buenos Aires Tetra
Buenos Aires Tetra: Fish Species Characteristics and Care
Seahorse in fish tank
Seahorses in Saltwater Aquariums
Close up of the lateral line on fish scale
Hole-in-the-Head Disease in Saltwater Fish
Harlequin rasbora fish with yellow and black scales swimming closeup
Harlequin Rasbora: The Vibrant Jewel of Community Aquariums
Ocellaris Clownfish and Anemone
Clownfish and Anemone Matches
Helostoma temminckii - Kissing Gourami
Kissing Gourami (Kisser Fish) Species Profile
Schreitmuller's silver dollar (Metynnis hypsauchen), side view
Silver Dollar Fish Species Profile
Colorful Tropical Fish and Coral In Tank Aquarium
Reef Tank Temperatures: How High Is Too High?
Little fish in fish tank or aquarium, gold fish, guppy and red fish, fancy carp with green plant, underwater life.
Swimming, Balance, Oxygen and Food Consumption in Fish
Slime Algae
Eradicate Slime Algae in an Aquarium
Hermit Crab (Anomura spp) on the sea shore.Cousine Island.Seychelles
8 Top Reef-Safe Sand Sifters
Checklist for Starting a Saltwater Aquarium at Home
Everything You Need to Start a Saltwater Aquarium at Home
Art Aquarium 2015
Breeding Aquarium Fish, Basic Breeding Tips For Beginners
Pet Fish Name Ideas
Fintastic Fish Names: 300 Creative Ideas for Your Aquatic Friends
Betta fish sleeping on leaf
Do Fish Sleep?
Amano shrimp sitting on a plant
Amano Shrimp Species Profile
German blue ram fish with yellow and blue scales and deep orange eyes closeup
German Blue Ram Species Profile
A 15 year old comet goldfish in a 100 gallon tank
Comet Goldfish Species Profile
Two Pictus catfish in an aquarium
Pictus Catfish: A Comprehensive Guide to Their Habitat and Care
How to control and prevent brown algae in aquariums
How to Get Rid of Brown Algae in Your Fish Tank: Expert Tips
Cleaning aquarium sand
How to Clean Aquarium Sand
Lobophyllia lobed brain coral
12 Corals to Consider for Your Reef Aquarium
Coral tank with no substrate for undergravel filter
A Comprehensive Guide to Undergravel Filters
measuring glass aquarium
Build Your Own Glass Aquarium
Goldfish (Carassius auratus) swimming in large rectangular fish tank.
Basic Types of Aquarium Filtration Systems
fish swimming in an aquarium tank
Aquarium Heater Calculator: Find the Perfect Heater Size for Your Tank
fishes in a marine aquarium
The 11 Most Common Mistakes Made by Saltwater Aquarium Keepers
fish swimming in an aquarium with algae in the background
How to Control and Prevent Algae in Your Fish Tank
Japanese Rice Fish
Purpose and Types of Aquarium Substrate
Dirty Aquarium Water
Understanding and Fixing Yellow Aquarium Water: Causes and Solutions
Fish Swimming In Aquarium
How Much Aquarium Supplies Do I Need?
Saltwater reef aquarium
Instructions for Setting Up a Saltwater Aquarium
Goldfish in an aquarium
Routine Aquarium Maintenance
Causes of Low Oxygen in Aquariums
6 Causes of Low Oxygen and Ways to Increase Oxygen in a Fish Tank
Cichlid tank decorated with live and fake plants
How to Manually Generate Heat in Your Aquarium If the Power Goes Out
Close-Up Of Siamese Fighting Fish In Tank
When to Use Sponge Filters for Aquariums
man maintaining saltwater aquarium
How to Clean Aquarium Glass & Prevent White Residue Build-up

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Aquarium Care & Maintenance Freshwater Fish & Aquariums Saltwater Fish & Aquariums