Water Quality
9 guides
Why Your Freshwater Aquarium Water Is Cloudy and How to Clear It
Cloudy aquarium water usually means one of four things: bacterial bloom, dust, leftover food, or algae. Here's how to tell them apart and fix each.
September 16, 2026
How to Lower and Raise Aquarium pH Safely
Learn how to lower or raise aquarium pH safely using natural methods, why stable pH beats chasing a number, and how pH swings stress fish.
July 3, 2026
New Tank Syndrome: Why Fish Die in a New Aquarium
New tank syndrome is an ammonia and nitrite spike in an uncycled tank. Learn why fish die, how to spot the symptoms, and what to do right now to save them.
June 30, 2026
Aquarium Water Parameters Explained for Beginners
Learn which aquarium water parameters matter, what the safe ranges are, and how to keep them stable for healthy freshwater fish.
June 24, 2026
How to Dechlorinate Tap Water for Your Aquarium
Tap water is almost always treated with chlorine or chloramine. Here's how to dechlorinate it safely before adding it to a freshwater fish tank.
June 24, 2026
Understanding pH, GH, and KH in Freshwater Tanks
Learn what pH, GH, and KH mean for your freshwater aquarium, how they interact, and how to match them to your fish's needs.
June 17, 2026
How to Do an Aquarium Water Change the Right Way
Step-by-step guide to aquarium water changes: how much to change, how often, and the right tools to keep your fish healthy.
June 13, 2026
Ammonia, Nitrite, and Nitrate: What the Numbers Mean
Learn what ammonia, nitrite, and nitrate levels mean for your freshwater aquarium, what's safe, and what to do when readings spike.
June 9, 2026
How to Test Aquarium Water (and How Often)
Learn how to test aquarium water with liquid kits or test strips, what parameters to check, and how often to test for a healthy freshwater tank.
June 5, 2026