What is he smallest tropical fresh water fish?

Question

What is he smallest tropical fresh water fish?

Answer 1

the smallest i have seen at a pet shop are neon tetras

Answer 2

A piranah.

=)

Answer 3

At the pet store, it's a guppy.

In the real world, I have no idea.

Answer 4

The least killifish is barely an inch.  It is rarely seen in petshops, but can be readily purchased over the internet.  The celestial pearl danio is around 2 cm, but it is an endangered species.  You can occasionally find them at pet shops though and it retails for around $11, however it is relatively easy to breed, and the price is expected to come down as it enters commercial breeding, and becomes more available.  I think there is also a species of pygmy glassfish that is under an inch, but that one is rarely seen in the hobby.

Answer 5

the smallest fish in fish stores is guppy i think