Hi all,
I need your advice about pump and filter arrangements.
I have a new pond project on the go, and I would like to have two ponds connected via a waterfall.
The upper pond is only small, and will have some plants, but no fish.
The lower pond will have golden orfe and goldfish.
As per my child-like diagram below, would that arrangement with a pump and single filter work OK? I'm wondering if the upper pond should have its own filter, or whether that would be surplus to requirements?

I need your advice about pump and filter arrangements.
I have a new pond project on the go, and I would like to have two ponds connected via a waterfall.
The upper pond is only small, and will have some plants, but no fish.
The lower pond will have golden orfe and goldfish.
As per my child-like diagram below, would that arrangement with a pump and single filter work OK? I'm wondering if the upper pond should have its own filter, or whether that would be surplus to requirements?
