What is the memory span of a Dwarf gourami?

Taking their life span into account their memory lasts about the same as yours and mine. They learn very quickly, and remember things like hiding places in their environment, who feeds them, what a net does and many other thing that would be necessary for survival in the wild. They are relatively short lived fish so obviously the length of time their memory lasts would also be limited by their lifespan. A fish that learns what a net does never forgets it for the rest of its life.