http://www.barrreport.com/forums/newthread.php?do=newthread&f=11#
Smile tom, i was just told by an aquarium service co.that not to use glass cleaner on outside of glass,that it will penetrate glass and kill your fish. is this true? i've only used water to clean glass. regards,cornhusker

Smile tom, i was just told by an aquarium service co.that not to use glass cleaner on outside of glass,that it will penetrate glass and kill your fish. is this true? i've only used water to clean glass. regards,cornhusker