Hi Erik, I'm glad the Excel treatment Luis recommended worked for you. I did not get to talk with you at the auction much about the specifics of the procedure. I may be the only one in the club with algae "opportunities" but possibly others would benefit from the information as well. Could you please advise what your algae situation was like before you started, what procedure you followed, when did you first notice results, and what your tanks look like now? Are you doing anything for ongoing maintenance? Any information would be appreciated. Thanks, Roy _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member