Thanks !
I try to create a kind of ecosystem that runs alone.
Rainwater from the roof goes in the first pond (about 5000 L - about 3 x 2.5 m) that flows into a second pond (about 10.000 L, 6m long, 1m depth). A water pump takes water from the 2nd pond and send it in the stream. So the stream flows into the first pond in a kind of close circuit. I dug all the stuff with just a showel and a pickaxe.
To simplify :
Rainwater from roof --> 1st pond --> 2nd pond --> stream --> 1st pond
Plants filter the water. When there are too many floating plants, I remove a part of them to make compost. Good organic fertilizer (be green mates ! ).
Waterproofed canvas is put down on an old fitted carpet, to prevent holes and rips from roots.
@dennisisawesome : inhabitants are goldfish, shubunkin, rhodeus serviceus, tritons and frogs
Eggs frogs !
:bounce: