This is a discussion on How fish swim within the Freshwater and Tropical Fish forums, part of the Freshwater Fish and Aquariums category; -->
Short article on how fish swim.
New research into how fish use fins for swimming | News | Practical Fishkeeping...
Am alway's fascinated by those fishes such as Banjo catfish,and some pleco's,otocinclus, which can get very quick burst's of speed by gulping in water and expelling it across their gills in addition to those fishes who can leap into the air with seemingly little effort.
Even large broad bodied fishes such as Discus,Angelfish,Severum's, can exhibit amazing speed when needed and this alway's proves amazing to me.