Yes, outdoor pond.
Leaves are mostly of the tropical cedar (Cedrela odorata), apparently very tannin'y. These are wind-blown seasonally and will be partially controlled-for with the pending bamboo arowana jump-fence.
Substrate is to be essentially bare (cement) with the lilies potted, thus net-scoop-able at both surface & bottom; however, was hoping to add sunken bamboo as refugia from the arowana.
Snails-various are already in there including mystery & ramshorn, both of which eat leaves, and Ostracod (etc) that also do.
I've only access to common pleco on this island, an important/nasty invasive in several waterways thus import restrictions on that family. I've one mid-size on-hand to be introduced this week as they don't seem to bother with lilies. I do worry about the snails, though.
I've got filament barbs that absolutely hammer on greenery, but likely won't be good for the lilies. Confirm?
Tannins are more of a worry than the leaves themselves - both for aesthetics (dark) & -vs- concrete over time, though this would be a long time. Tell me about tannins removal/control - abundant water changes, certainly. Charcoal in the filter also, if I remember correctly(?)
