White Cloud and Eel in Plants

"I wanted to take the time to say thank you for your reply to my questions last month. Today is the 4th day in a row of good water quality reading from our tank. Your advise was invaluable. [...] The GREAT news is all of our fish survived! I really appreciate your responses to my questions. You put me on the right track. For that thank you!"

"Many thanks for such a swift reply. I will do as you have recommended and hope this will help things."