The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
This little amphipod will mate several times per year. If you observe the courtship closely you will notice that the male will carry the female on his back, for about a week, whilst swimming, during the copulation process. Females will normally produce around 40-50 fertilised eggs in her brood pouch which show up as being orange in colour and are conspicuous through her semi-transparent body. The tiny shrimp hatch within the egg pouch of the female and emerge as microscopic, fully developed young.
They will then develop an exo-skeleton and will shed this (moult) several times as they grow. The shrimp have no natural defences against predators so they will hide in any dark areas of the tank. They will however become more active under low light conditions or after dark.