Gills .
garage
A Wahoo fish
trout
Zebra
Roach
Some fish that have 5 letters include: - Trout - Perch - Smelt
One fish I could think of is the Parrot fish.
Coley is a type of fish. It is similar to cod.
Trout, smelt
It will raise there respiration rate. I did an experiment on this about 5 years ago.
1.Beating of Your Heart 2.Breathing 3.Stomach 4.Lower Digestive Organ 5.Digesting Food
Some fish that have five letters include: - Trout - Betta - Bleak - Bream - Catia - Cisco - Danio - Smelt - Grunt - Loach