Ludwigia 'Cuba'
Fine whorled, needle-like leaves shift from green to glowing orange and pink at the tips.
Cuban Ludwigia is a refined, demanding stem plant that rewards strong light, stable CO₂, and complete nutrition with exceptional color. The representative photo shows its submerged growth: dense whorls of narrow leaves on upright stems, green at the base and flushing orange-pink at the growing tips.
Reference image — cultivar may vary.Imagen de referencia — el cultivar puede variar.
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What it needs to thrive
- Lighting
- Moderate to high light; stronger light supports denser growth and richer color.
- Flow
- Moderate circulation through the stems without crushing the growing tips.
- Feeding
- Dose a complete liquid fertilizer consistently; supplemental CO₂ improves density and color.
- Temperament
- Peaceful, shrimp-safe, and suitable for planted community aquariums.
- Difficulty
- Advanced
- Ideal Tank Size
- 10 gallons and up
- Water Parameters
- 70–80°F · pH 6.0–7.5 · soft to moderately hard water · 0 ammonia / 0 nitrite
Plant individual stems in a loose background group with room for light between them.
Quarantine, dip, and acclimation
Quarantine
Hold all new fish in a bare-bottom 10–20 gallon QT for a minimum of 4 weeks. Observe for flashing, clamped fins, white spots, or breathing changes. Treat preventatively with copper (1.75–2.5 ppm chelated) or tank-transfer method for ich, plus a praziquantel course for flukes. Invertebrates and corals skip QT but go through dip and observation instead.
Recommended coral dip
For every new coral: a 5–10 minute bath in your reef-safe dip of choice (Bayer Complete, CoralRx, or Reef Primer) following label dosage, followed by two clean saltwater rinses. Inspect plugs and bases for flatworms, pyramid snails, and eggs — remove or refrag onto clean plugs before placing in display.
Acclimation
Float sealed bags in your QT or display for 15 minutes to match temperature. Then drip acclimate at 2–4 drops per second for 45–60 minutes until volume has tripled. Net livestock into the tank — never pour shipping water in. Dim the lights for the first 24 hours to reduce stress.
