Kypros and Shango, Thanks for the quick feedback. A water change and a few air-stones in the sump seems to have done the trick. The CO2 levels are down around 26 ppm and the fish have perked up again. It's good to come home and see that the rummy nose aren't resting on the bottom anymore. Those lazy bums need to work for their food. Jesse _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member