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to clean or not to clean



That is the question! I was busy doing a water change yesterday when this
question came to mind. I change water every 2 weeks and during the
operation I run my suction hose close to the gravel and suck up loose
leaves, dirt etc that is lying on top. Perhaps I shouldn't be doing this.
What is the word out there? Should one leave the bottom junk for plant
fertilizer?

Olga
in overcast Vancouver -- but no rain.