In the aquarium trade, “moneywort” often means Bacopa monnieri. The same common name is also used for creeping Jenny, Lysimachia nummularia, a different plant. Confirm the botanical identity before using care advice from a garden or aquarium label.
Identify the plant you actually bought
Bacopa monnieri has fleshy, paired, oval-to-oblong leaves. Singapore NParks’ botanical profile describes its creeping wetland growth and semi-succulent foliage. Ask the supplier for the scientific name if identification is uncertain.
Do not confuse it with lemon bacopa, Bacopa caroliniana. Nor should the word “Brahmi” or an herbal product label be used to choose an aquarium plant.
Make room for upright growth
Use the plant as a stem group with space above and around it. A small cutting can reach the surface and shade the lower planting as it develops. Keep an open swimming area instead of filling the aquarium with a tightly packed bunch.
Remove packaging and temporary ties, separate the stems, and insert their lower portions gently into suitable aquarium substrate. Keep buried leaves and damaged tissue out of the planting hole.
Get light to the lower leaves
Provide suitable aquarium lighting at the plant’s position. The output reaching a short foreground plant is different from that reaching a top near the surface, so watts per gallon alone is not a useful setup rule.
If the tops are growing while the base becomes bare, review shading and thin or replant the group. Do not keep increasing the light period without checking the rest of the conditions.
Supply nutrition without a mandatory soil purchase
A purpose-made planting soil is one option, but suitable sand or gravel can also support the plant with appropriate nutrition. Match root and water-column fertilizer to the whole planting and follow the product directions.
Injected CO2 can be used in a managed planted tank, but is not a reason to treat moneywort as unsuitable for a simpler setup. Our planted-aquarium guide explains the equipment choices.
Keep the group fresh with healthy cuttings
Cut healthy tops or side shoots with a clean, sharp tool. Remove the lowest leaves before planting the cut portion and give it time to root. Do not uproot every stem each week to rearrange the group.
Remove excess surface growth and deteriorating leaves during the maintenance routine. Persistent yellowing or soft stems warrants checking planting depth, light, nutrition, and water conditions rather than assuming a single deficiency.
