Hi all hope to make some helpful friends here. I am First time DWC stand alone 10g totes, using Canna Nutes. I have a 4x4 tent with mars hydroII 410W LED. currently have 4 buckets made up not sure if that is to many, wife pushing for 4. My water is a tad hard here sitting at 7.4 to 7.7 for PH...