Thanks for the great info, Vinnymac! You just explained why I just lost 2 cherries and a new bumble bee. My nitrates were off the scale before my last H2O change.

I guess the Bumble Bee just took longer to die as it didn't go until after the H2O change. I just figured with such a low bio load (only 7 shrimp), the 10 gal wouldn't need as much attention. Like others, I have proved that laziness is the fishkeepers worst enemy. Sorry, shrimpy dudes! RIP
Our aquatic families are just like our teeth, ignore them and they'll go away.
Tommy