An unfiltered tank is a unique challenge - you will learn the basics for how to get started in this article.
How to Culture Infusoria for Baby Fish
Stocking A Freshwater Fish Tank
Understanding the Lighting Spectrum
Adding Rocks and Wood to Your Freshwater Aquarium
Fish to Avoid for Planted Freshwater Tanks
Freshwater Fishless Cycling
Choosing and Conditioning the Water in Your Aquarium
Tips for Rooting, Pruning, and Propagating Live Aquarium Plants
What is an Unfiltered Tank and How do I Cultivate One?
Common Problems with Tank Filters