These photo tanks from Japan allow you to photograph your microfishing catches while keeping them in the water. This is better for the fish and better for identifying which species of fish you caught.
The small tanks are roughly 4" long, which is appropriate for micro species like dace, shiners, and darters.
The medium tanks can handle micros along with smaller native trout and sunfish.
At roughly 8" long, the large tanks are even big enough for some small gamefish.