Hi,i want to ask something again.i have known about gar and how to keep them pretty well,but something is still bugging me until now.how can you tell the difference between genus lepisosteus  and genus atracstoteus gar when they are still small?

Hi Evan,

Most of the contributors here are UK based and gar are limited to the Americas/Carribean so we may not be able to help much. I think (could be wrong) that the morphology of the gill rakers forms a basis for distinguishing the two genera.

Given the increasing popularity of this group among aquarists posting on a (N American) aquatic site might get you more useful diagnostics for juvenile fish.