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Betta Fish Behavior Before Death: Understanding the Signs

May 26, 2023May 25, 2023 by Alex Wayne

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The Importance of Water Filtration in Aquariums

The Importance of Water Filtration in Aquariums

May 25, 2023May 19, 2023 by Alex Wayne

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Are Goldfish Aggressive

Are Goldfish Aggressive? How to Stop Your Goldfish Aggression

May 17, 2023 by Alex Wayne

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Can Saltwater Shrimp Live in Freshwater

Can Saltwater Shrimp Live in Freshwater?

May 17, 2023 by Alex Wayne

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Juvenile Boesemani Rainbowfish

Juvenile Boesemani Rainbowfish – All You Should Know

May 17, 2023 by Alex Wayne

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Pygmy Corydoras Food – Food, Diet, Behavior And More

May 15, 2023 by Alex Wayne

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How To Soften Aquarium Water? 7 Safe Methods

April 27, 2023 by Alex Wayne

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Giant Betta Tank Size

Giant Betta Tank Size, Lifespan, Appearance, Behavior & Detailed Care Guide

March 26, 2023 by Alex Wayne

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Does Aquarium Salt Raise pH

Does Aquarium Salt Raise pH? We’ve Got The Correct Answer

March 19, 2023 by Alex Wayne

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Bumblebee Puffer Fish

Bumblebee Puffer Fish – Care Guide, Feeding, Behavior…

March 18, 2023March 17, 2023 by Alex Wayne

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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.

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