I have been keeping a heavily over stocked AR-620 Goldfish tank for 3 years now. Due to the huge amount of fish in the tank, I have to do a 20% water change twice a week and clean the filter weekly because my water becomes green and dirty. I also have to regularly increase the pH and kH levels because they fall so fast. The tank has lots of oxygen and matrix in the filter and the fish are all healthy but it is a lot of work.
I just wanted to let you know that 8 weeks ago I purchased some Polyfilter to go in my top filter.
Since I have added Polyfilter to the tank the tank has remained crystal clear and the water quality is always stable even though I have not done any water changes in this time.
I can’t believe how good this product is!
I would never run another tank again without using this product!
I would suggest that everyone tries Polyfilter!
Thank you for selling it to me!
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