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Home / Health & Diseases

Health & Diseases

4 guidesUpdated 20 August 2026
  • Betta fish swimming along the bottom of a planted aquarium
    Faded color, clamped fins, hiding, or pacing the glass

    Signs of a Stressed Betta (and How to Fix It)

    Faded color, clamped fins, glass surfing? Here's how to spot a stressed betta, what's causing it, and how to fix it before… Updated August 19, 2026
  • Mockup of a betta fish with velvet
    A fine gold or rust dust, easiest to see under a flashlight

    Velvet in Betta Fish: What It Is, How to Spot It, and How to Treat It

    Velvet is a parasitic infection that coats your betta in a fine gold dust. It's sneaky, fast-moving, and one of the most… Updated August 20, 2026
  • A close-up photograph of a male betta fish with fin rot
    Ragged, receding fin edges that get worse over days

    Fin Rot in Betta Fish: Causes, Symptoms, and Treatment

    Is your betta's fin looking ragged? Learn how to identify, treat, and prevent fin rot. Our guide covers water quality fixes and… Updated August 20, 2026
  • A mockup of a male betta fish with ich
    White spots, like grains of salt, on the body and fins

    Betta Fish Ich (Ick): Signs, Treatment, and Recovery

    In this guide, you’ll learn what ich is, what it looks like on a betta, what causes it, how to treat it,… Updated August 20, 2026

Can’t match what you’re seeing? Most mystery symptoms trace back to water. Test it first. The stress guide walks you through what the numbers mean.

Start with the stress guide
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  • Betta 101
    • Is a Betta Right for Me?
    • Tank Size Guide
    • Tank Setup Guide
    • How to Cycle Your Tank
    • Tank Cleaning & Maintenance
    • Food & Dietary Needs
    • Betta Tank Mates
  • Health & Diseases
    • Fin Rot
    • Ich
    • Stress
    • Velvet
  • All Articles
  • Resources
    • Betta Fish Care Glossary
    • Recommended Supplies
    • Free Betta Care Printables
  • About
    • Research Library
Free printables
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