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. Not Saltwater: trout, salmon, goldfish, carp, potamotrygon, sea lamprey, large mouth bass
2.1. Carnivore: potamotrygon, trout, salmon, sea lamprey, largemouth bass
2.1.1. Spotted: potamotrygon, trout, salmon, sea lamprey
2.1.1.1. Brown
2.1.1.1.1. Potamotrygon
2.1.1.2. Not Brown: trout, salmon, sea lamprey
2.1.1.2.1. Scales
2.1.1.2.2. No scales
2.1.2. Not Spotted
2.1.2.1. Largemouth Bass
2.2. Not Carnivore
2.2.1. Goldfish
2.2.2. Carp