
Originally Posted by
UncleChester
If you're ok using wild plants, you might be able to harvest some from a swamp/pond. It's pretty rampant out here, maybe it's not in BC? If it is, it's a spready little plant that you can cull without any fear of disturbing its progress. Actually, it usually just expands to instantly fill the space.
I'd use duckweed for my goldfish, but it gets in their filter so they get Canadian Pondweed, another cull from the wild. It's an easy to grow plant that will survive indoors, underwater, and it's safe for fish (they eat it), but I haven't used it for frogs.
I think you've said before you've managed to kill pothos? It's water tolerant as well. You can propagate it by putting cuttings of the vine into a jar filled with water and leaving in a window or under an artificial light. This way you can always have backups if the frogs manage to smash it.