Welcome! I am Alex Wayne and I am the founder of Koiusa.com. My team is using personal experience, published studies, and lots of anecdotal evidence from our time spent on fish forums. We aim to deliver the best, most trusted advice when it comes to starting or growing your fishkeeping hobby.
We want to provide helpful information about home aquariums, fish, and other aquatic critters. Our mission is to make complex or confusing topics into clear, easy-to-read guides with no confusing terms.
© Koi USA
Guppy Staying In One Spot At Top Of Tank – Reasons & Solutions
Molly Fish Eggs In Tank: An Ultimate Guide
Can Angelfish Live Alone? – Essential Knowledge & Explanation
How To Transfer Betta Fish To New Tank? Fish Tank Changing Guide
What Are The Best Homemade Betta Fish Toys? Easy DIY Tasks
Is Algae Bad for Betta Fish? Everything You Need to Know
How Many Guppies Per Gallon? One Rule Fits All
Tire Track Eel Tank Mates – 3 Ideal Options
How to Tell if a Molly Fish Is Dying? Let’s Get The Answer!
Are Dwarf Gouramis Aggressive? The Correct Answer Is Here!
Do Koi Fish Need Oxygen? & Do Koi Need Oxygen Air Pump?
How Often Should You Change Your Fish Tank Water?
Guppy Mating Behavior: A Complete Guide
How to Remove White Algae on Aquarium Glass?
Will Goldfish Eat Shrimp? Can They Live Together?
Orange Bristlenose Pleco: An Overview & Care Guides
Betta Gill Flukes: Causes, Symptoms & Treatments
Bumblebee Puffer Fish – Care Guide, Feeding, Behavior…
Do Shrimp Eat Brown Algae? Detailed Explanation For Beginners
Goldfish Growth Tips & Knowledge – A Complete Guide For Beginners