This is a discussion on synchronized swimmers within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; -->
are there any reasonably priced tropical fish that swim synchronized if in large enough group?...
Shoaling and Schooling Fish lol actually googled "shoaling fish" and got a thread from here :) IMO the key to getting them to look "synchronized" is giving them enough space to move around.. if they are in a small tank they will stray more and swim around on their own because there is no chance of the group moving far enough away to give them the instinct to bunch up. but tetras (columbian are very beautiful imo) are cheap and would be a good choice if u have many and plenty of room for them to cruise around.. if u have too few or not enough room i think the "synchronized" effect will be diminished reguardless of the type of fish.
I hear that the rummynose/firehead tetra shoal together pretty tightly.
Dlambert is right though.. Fish will stick together more in a larger space. In smaller tanks groups feel more inclined to disperse as they are always close together anyways.