Step-by-Step Fishless Cycling Guide
Fishless cycling establishes the aquarium's biological filter before fish are exposed to ammonia and nitrite.
Guides & advice
Aquarium Guides
Choosing the Right Aquarium Size
Choose an aquarium size from the adult needs of your fish, with water volume, footprint, stand and floor support, budget and upkeep in mind.
Best Aquarium Substrates Explained
Aquarium substrate is the material covering the bottom of the tank.
How to Install a Sponge Filter
Install a sponge filter: choose the size and spot, connect the airline and check valve, set the airflow, and seed and clean the sponge.
How to Install a Canister Filter
Install a canister filter without leaks or air locks: position it, route the hoses, load the media, prime it, then check flow and fittings.
Aquarium Heater Placement Guide
Where you place an aquarium heater matters more than it might seem.
Choosing the Right Aquarium Light
Choose an aquarium light by what the tank needs: intensity, spectrum, coverage for its length and depth, photoperiod control and plant difficulty.
Hardscape Design Basics
Hardscape basics for aquascapes: choosing safe stone and wood, building a focal point and depth, keeping the layout stable, and planning for plants.
How to Leak Test an Aquarium
Leak test an aquarium before setup: inspect the seams and stand, fill it in stages, watch for leaks or flexing, and know what to do if one appears.
Betta Fish Care Guide
Betta care: tank size and setup, warm and clean water, gentle filtration, what and how to feed, plants and enrichment, and early warning signs.
Guppy Care Guide
Guppy care: tank size, mineral-rich water, diet, telling males from females, breeding and fry, and the routine that keeps guppies healthy.
Neon Tetra Care Guide
Neon tetra care: tank setup, water and temperature, school size and tank mates, feeding, and how to reduce stress and keep the group healthy.