Identification
This plant forms slender, branching runners with opposite, rounded to oval leaves. Under aquarium conditions it usually grows along the substrate, rooting at nodes and producing a dense mat. The supplied source identifies it as Micranthemum tweediei; closely related small carpeting plants can look similar, so identification is treated as probable rather than based on flowers or a herbarium specimen.
Planting
Remove cultivation material from the portions, divide the plant into small plugs and place them a few centimetres apart. Insert the roots and lower stem nodes into the substrate while leaving the leaves exposed. Smaller portions anchor more reliably and gradually join into a carpet.
Light and carbon
Medium to high lighting encourages compact, horizontal growth, although the plant can survive under less intense light with a looser habit. Consistent carbon dioxide availability usually improves rooting, spread and density. Avoid sudden changes in carbon dioxide or lighting, which can encourage melting or algae.
Substrate and nutrition
Use a fine to moderately fine substrate that allows delicate roots and runners to hold. Provide a steady supply of nitrogen, potassium and trace elements through the water column and, where appropriate, the substrate. Good circulation helps deliver nutrients and prevents debris from settling in the carpet.
Maintenance
Trim the carpet when it becomes too thick or begins to shade its lower layers. Remove loose, decaying sections and replant healthy cuttings. Regular trimming promotes lateral spread, while infrequent deep cuts can expose the substrate and reduce the chance of the mat lifting.
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