springknee
1000 gal pond 2200gph pump
I have a 100gal filter tank. I think its a skippy type. water enters at the base works its way through media and flows out the top into the waterfall. I also have the top planted with water cress and parrots feather. When I due water changes there is a lot of gunk that comes out of the valve at bottom of the tank. Also when I remove over crowed plants I notice a lot of gunk. So was wandering about removing and cleaning the plants and media. Will this mean the pond will have to cycle again. And if it's ok to clean these how often is advisable?