Very helpful. Thanks!

On Apr 20, 9:13 am, kthirtya wrote:
You don't have to use aquatic soil but I like
it. Is expensive though. It seems to stand the
test of time and makes it easy to divide the
plants. But it will spill and be hard to clean
up and koi like to dig thru it (you can put bigger
river rocks on top of it).

Untreated garden soil does fine also. Lots of
options, I'm sure others will chime in.

They sell aquatic plant fertilizers and they are
fine with fish. Also you can use Jobe's Rose
spikes for flowering plants like lilies and lotus.

k :-)