barely 4 months pass by since i started keeping crs and cherries in my mostly tetra dominated 75 gal community tank. lately i've noticed some of my mature shrimps starting their long happy march toward shrimp heaven. i'm not too worry about dwindling population since i'm seeing a few tiny shrimplets hiding amongst the vegetation. looks like i'm being too optimistic to figure these guys would at least live a year or two of happy life. pls be blunt and let me know how long they'll live in an average tank.