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Micra Propagation Made Easy: Multiply Your Plant Without CO₂

July 04, 2025

Micra, also known as Micranthemum, is a compact aquatic plant loved for its carpet-like growth in aquariums. The good news? You don’t need a CO₂ system to propagate it successfully. With the right conditions and regular care, Micra can multiply naturally in low-tech tanks.



Understanding Micra Propagation


Micra spreads horizontally by producing runners—small shoots that branch off from the main stem. These shoots grow roots and form new clusters, eventually covering the substrate. Even without added CO₂, this process can occur steadily in a stable tank.



Best Conditions for Non-CO₂ Propagation



  • Lighting: Use moderate lighting (6–8 hours/day). Avoid intense light to prevent algae.

  • Substrate: Nutrient-rich soil or fine gravel helps new roots anchor and spread.

  • Fertilizers: Liquid fertilizers can supply essential nutrients in low-tech tanks.

  • Water Parameters: Keep temperature between 22–28°C and pH around 6.5–7.5 for healthy growth.



How to Trim and Replant Micra


When Micra grows densely, trim the top layer with small aquascaping scissors. Replant the trimmings in open areas of your substrate. These pieces will root themselves and begin forming new patches within days.



Tips for Fast Micra Spreading



  • Ensure even light coverage across the tank

  • Do partial water changes weekly to maintain clean conditions

  • Use gentle water flow to prevent plant displacement

  • Avoid overcrowding with other fast-growing plants



Conclusion


Propagating Micra without CO₂ is entirely possible with a consistent light schedule, clean substrate, and basic nutrients. With patience and care, your Micra will expand beautifully, forming a lush green carpet across your aquarium.



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