1. Saltwater: clown fish, sail fish, puffer fish, hammerhead shark, great white shark, anglerfish, seahorse, piranha, ribbon eel, bluetang, tuna, mahi mahi, halibut
1.1. Carnivore: sailfish, hammerhead shark, great white shark, anglerfish, seahorse, piranha, ribbon eel, tuna, mahi mahi, halibut
1.1.1. Spotted: seahorse, piranha, mahi mahi, halibut
1.1.1.1. Brown: seahorse, halibut
1.1.1.1.1. Scales
1.1.1.1.2. No Scales
1.1.1.2. Not Brown: piranha, mahi mahi
1.1.1.2.1. Piranha
1.1.1.2.2. Mahi Mahi
1.1.2. Not Spotted: sailfish, hammerhead shark, great white shark, anglerfish, ribbon eel, tuna
1.1.2.1. Brown
1.1.2.1.1. Anglerfish
1.1.2.2. Not Brown: sailfish, hammerhead shark, great white shark, ribbon eel, tuna
1.1.2.2.1. Scales: sailfish, hammerhead shark, great white shark, ribbon eel, tuna
1.1.2.2.2. No Scales
1.2. Not carnivore: Clownfish, Pufferfish, Bluetang
1.2.1. Clownfish
1.2.2. Pufferfish
1.2.3. Blue tang
2. Trout, Salmon, Goldfish, Carp, Potamotrygon, Sea Lamprey, Large Mouth Bass, Clownfish, Pufferfish, Hammerhead Shark, Great White Shark, Angler Fish, Seahorse, Piranha, Ribbon Eel, Blue Tang, Tuna, Mahi Mahi, Halibut
3. Not Saltwater: trout, salmon, goldfish, carp, potamotrygon, sea lamprey, large mouth bass
3.1. Carnivore: potamotrygon, trout, salmon, sea lamprey, largemouth bass
3.1.1. Spotted: potamotrygon, trout, salmon, sea lamprey
3.1.1.1. Brown
3.1.1.1.1. Potamotrygon
3.1.1.2. Not Brown: trout, salmon, sea lamprey
3.1.1.2.1. Scales
3.1.1.2.2. No scales
3.1.2. Not Spotted
3.1.2.1. Largemouth Bass
3.2. Not Carnivore
3.2.1. Goldfish
3.2.2. Carp