PLease find out the linneaus name. If it is the same as a glass shrimp they(in most places) cost just under 2$ ea and live slightly over 2 years. they are also one of the few shrimp that will breed in fw. A bout the only way they die before 2 years is if something eats them. they average about 1-1 1/2" long and are great scavengers and algae eaters. The only shrimp I have seen at 1$/doz were fairy shrimp whitch are mysids, not true shrimp, more like giant brine shrimp, very cool and great feeders.Glass shrimp look like market shrimp except that they are very small and perfectly clear. The tank that acts as a bathroom nightlight has at least three in it that are almost three years old.