Some of the main considerations when it comes to indoor pond plants would be
Natural light or supplemental grow-lighting
Humidity levels
Temperature
Seasonal plants
Often some of the best plants for an indoor pond are indoor tropical plants with a high tolerance of low light and stable conditions
Pothos – Thrives in low light and adapts easily to water.
Lucky Bamboo – Tolerates low light and grows well in water setups.
Spider Plant – Can handle low-light conditions and grows in water.
Spiderwort -
Philodendron – Prefers indirect, low light and does well in water.
Chinese Evergreen – A hardy plant that tolerates low light and water.