How to Cycle a Fish Tank: Fishless and Fish-In Methods
Learn how to cycle a fish tank step by step with the fishless or fish-in method, how long tank cycling takes and the test readings that mean it is ready.
Cool Freshwater Fish: 20 Unusual Species for Your Aquarium
Discover 20 cool freshwater fish, from elephantnose fish to glass catfish, with adult size, tank size and care level to help you pick an unusual species.
The Aquarium Nitrogen Cycle Explained Simply
Learn how the aquarium nitrogen cycle turns toxic ammonia into nitrate, how long cycling takes, safe test levels and how to fix a crashed cycle.
Large Fish Tanks: Best Sizes, Setup Tips and Costs
Planning a large fish tank? Compare 75 to 180 gallon sizes, weights and footprints, plus setup tips and a worked monthly running cost example.
Tropical Freshwater Fish: 25 Colorful Species for a Heated Tank
Compare 25 tropical freshwater fish for a heated tank, with adult size, tank size and temperature for each, plus tips on choosing tank mates.
Fish Tank With Stand: What to Look For Before You Buy
Buying a fish tank with stand? Check footprint, weight rating, materials and leveling so your aquarium stays safe. Includes a tank weight chart.
How to Set Up a Fish Tank: A Beginner’s Step by Step Guide
From choosing the spot to adding your first fish, follow these 10 steps to set up a freshwater fish tank the right way, including how to cycle the water safely.
Fish Tank Heater Guide: Types, Placement and Best Temperature
Tropical fish need warm, steady water. Learn which aquarium heater type to buy, how many watts your tank needs, where to place it and the best temperature for common fish.
Best Freshwater Fish for Fish Tanks: 30 Species for Every Setup
From tiny ember tetras to showpiece discus, these 30 freshwater fish suit home aquariums of every size. Compare adult size, tank size, temperature and temperament, then plan a community that thrives.
How to Choose a Fish Tank: Sizes, Types and Buying Guide
The right tank makes fishkeeping easier from day one. Compare tank sizes, shapes and materials, see what equipment you need and use our checklist to buy an aquarium fish tank that suits your fish.