Dyed Oscar Fish: Why You Should Never Buy One

Dyed oscar fish — also marketed as “painted oscars,” “tattooed oscars,” or “berry oscars” — are normal oscars that have been artificially colored through injection, dipping, or chemical treatments to produce unnatural neon colors. We wrote this article to explain…

Astronotus Crassipinnis: The Other Oscar Species

Astronotus crassipinnis is the other oscar — the lesser-known second species in the genus that most fishkeepers have never heard of, let alone seen in person. While its famous sibling Astronotus ocellatus dominates pet stores worldwide, A. crassipinnis remains a…