Loss of coloration is a common symptom of illness in aquarium fish.
Fish Diseases
THIS IS WHERE ALL THE FISH DISEASES GO.
Why is Your Betta Fish Having a Bloated Belly? (Tips & Fixes)
It might be confusing to see your Betta going from healthy and energetic to puffy and unenthusiastic.
What is the Reef-Safe Ich Treatment for Fish in a Display Tank?
It’s really discouraging to see your aquarium efforts go to waste because of a single parasitic outbreak.
6 Tested Saltwater Ich Treatments to Save Your Marine Fish
Did you recently add the perfect fish to your aquarium, just to find it covered in white dots a couple of days later?
How to Treat Freshwater Ich and Cure Your Fish?
Ich, also known as ick, is one of the most prevalent diseases in the aquarium hobby and every fish keeper will deal with it at least once.
Identifying the White Spots That Appear on Fish (illustrated)
One day you pass by your aquarium and notice that your goldfish or Betta is covered in something unusual.
Nitrate Poisoning in Aquarium Fish: Causes and Cures
If you notice that your pet goldfish is grotesquely curled up then it’s definitely time to reassess the water quality in your aquarium.
Cause (+ Cures) for a Fish That’s Floating Upside-Down But is Still Alive?
One day you wake up to the stunning sight of your favorite goldfish acting like a balloon.
A fish floating at top of the tank but not dead yet (even actively moving around) can be confusing to witness. What does that signal?