I'm thinking 100' square, if I can manage it. Maybe a 15'x15' triangle. We'll see. Digging in my ground is done with a pickaxe, and I'm a bit limited for full sun space anyway.
I once saw a setup where someone put in a raised bed type frame, draped that with a liner, and capped it around the edge.
You've got me wondering about my fish. I lost one of my koi in an unrelated demo system today and suddenly I'm feeling more protective of them. Cheap fish are hard to get a hold of this time of year, and I don't know if I want to sacrifice any of my current ones to the Euryale's spikes. I guess I had just assumed they'd be smart of enough to take care of themselves.
