First off, in what dream world do ponders have you come by and fluff their gravels once a month. Hell, most dont even backwash their filters that often. And if the truth were known about the cleaning of aquascapes ponds, many if not most have never been cleaned. Ever. So unless you sell them the maintenance when you sell the pond, it aint gonna happen.
Several other things too I could cover, but got too much to do.
All I can say is good luck!
And if I am in the area, lunch will be on me. Unless you are too busy running your world wide monopoly.
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