Audiolog sources:

Achilles Tang 
https://en.wikipedia.org/wiki/Acanthurus_achilles
https://kidadl.com/animal-facts/achilles-tang-facts

Atlantic Cod
https://kidadl.com/animal-facts/atlantic-cod-facts

Blue Tang 
https://en.wikipedia.org/wiki/Paracanthurus
https://kidadl.com/animal-facts/blue-tang-facts

Catfish 
https://en.wikipedia.org/wiki/Catfish

Clownfish 
https://kidadl.com/animal-facts/clownfish-facts
https://en.wikipedia.org/wiki/Amphiprioninae
https://kidadl.com/articles/clownfish-facts-for-kids-nemo-and-more

Common Carp
https://en.wikipedia.org/wiki/Common_carp
https://kidadl.com/animal-facts/common-carp-facts

Flowerhorn 
https://en.wikipedia.org/wiki/Flowerhorn_cichlid
http://trueaquarium.com/flowerhorn-facts/

Herring
https://en.wikipedia.org/wiki/Herring
https://kidadl.com/animal-facts/herring-facts

Koi
https://kidadl.com/animal-facts/koi-facts

Moorish Idol 
https://kidadl.com/animal-facts/moorish-idol-facts

Piranha 
https://kidadl.com/animal-facts/piranha-fish-facts

Red Snapper 
https://kidadl.com/animal-facts/red-snapper-facts

Salmon
https://kidadl.com/animal-facts/salmon-facts

Bottlenose Dolphin 
https://kidadl.com/animal-facts/bottlenose-dolphins-facts

Great White Shark
https://kidadl.com/animal-facts/great-white-shark-facts

Hammerhead Shark
https://kidadl.com/animal-facts/great-hammerhead-sharks

Orca
https://kidadl.com/animal-facts/killer-whale-facts

Pufferfish 
https://kidadl.com/animal-facts/abei-puffer-facts

Sea Turtle
https://kidadl.com/animal-facts/sea-turtle-facts

Swordfish
https://kidadl.com/animal-facts/swordfish-facts