Hey there guys, just dropping by quickly because I read something really upsetting!
CHECK THE INGREDIENTS IN THE FOOD YOU GIVE TO YOUR FISH AND LOOK FOR SOMETHING CALLED "ETHOXYQUIN".
While researching fish (more specifically Oscars because I'm thinking about setting up an Oscar tank) I found this:
Originally Posted by Wikipedia
Ethoxyquin is a quinoline based antioxidant used as a food preservative and a pesticide (under commercial names such as "Stop-Scald"). It is commonly used as a preservative in pet foods to prevent the rancidification of fats. There has been some speculation that ethoxyquin in pet foods might be responsible for certain health problems. To date, the US FDA has only found a verifiable connection between ethoxyquin and buildup of protoporphyrin IX liver, as well as elevations in liver-related enzymes in some animals. It has been shown to cause mortality in fish.
It is also commonly used in spices to prevent color loss due to oxidation of the natural carotenoid pigments.
I just quickly went through my fish food and found that my Nutrafin Max flakes contained it, so I'm probably going to stop using it. I was wondering why the health of my fish started to deteriorate whenever I started feeding them it... D:
I found a big article about it here