F fernandokng Advanced Reefer Location Manhattan, New York Rating - 100% 65 0 0 Sep 15, 2009 #1 My Calc and Alk parameters seem steady at the moment, but I'm not sure what is causing the issue.
J john90009 Experienced Reefer Location Bricktownship, New Jersey Rating - 100% 10 0 0 Sep 15, 2009 #2 could be that your sand is to fine- also nothing is aerating the sand