Hi everyone, I have a Dupla CO2 diffuser I just placed in a small tank. The diffuser disc appears to be either ceramic or sintered glass. When it clogs up how should I clean it? Vinegar or bleach? Thanks for any help. Regards, Dave _______________________________________________ Aquatic-Plants mailing list Aquatic-Plants at actwin_com http://www.actwin.com/mailman/listinfo/aquatic-plants