Wolffia angusta requires a constant supply of clean, still freshwater. As it floats on the surface, it absorbs nutrients directly from the water.

Maintain a stable water level, ensuring the plants are always submerged but not completely overwhelmed. Avoid strong currents or water that is stagnant and polluted.

Pruning is not a typical horticultural practice for Wolffia angusta. Its growth is naturally rapid and self-regulating.

If excessive growth occurs and shades out other aquatic plants, it can be harvested by skimming the surface. This harvesting effectively manages its spread and provides nutrient-rich biomass.

Propagation of Wolffia angusta is extremely rapid and occurs naturally. New plants bud off from existing ones. Simply ensure healthy parent plants are present in suitable conditions, and they will multiply exponentially.

Harvesting portions of the floating mat also serves as a means of propagation.

Repotting is not applicable to Wolffia angusta as it is an aquatic plant that floats freely on the water surface. It does not have roots that anchor it in soil or a pot.

To 'repot,' you would simply move a portion of the existing plant mass to a new, suitable aquatic environment.