Hi,

I was thinking that pond gets dirty faster than the aquarium because it is open and not close like the aquarium. If we have indoor pond lets say inside the house,when we clean the house, dust goes inside the pond since it is open. If it is outdoor pond in a garden the same is happening dust is there,maybe sandy weather comes spoiling the pond water.
I wonder if I am right. Please correct me as I am new in fish aquarium keeping and I am thinking of ponds.
Thank you.