It could be worse. You could have gotten a mealy bug infestation which can infest the rhizomes, in which case sometimes the only option is to toss the plant.
It might be better to remove the aphids on your VFTs by hand or use an insecticide. They don't like being waterlogged but may tolerate the dunking.
It might be better to remove the aphids on your VFTs by hand or use an insecticide. They don't like being waterlogged but may tolerate the dunking.