Tiger Oscar
A variant of Oscar (cichlid) (Astronotus ocellatus)

A selectively-bred line with heavy red-orange marbling over a dark base, the most recognizable domestic Oscar. Effectively the default pet-trade Oscar.
Keeper tips for this variant
Marbling pattern keeps developing for the first year or two — don't judge a juvenile's final look; provide stable water as 'hole-in-the-head' (HLLE) is common in nutrient-poor, dirty tanks.