Ludwigia repens

Ludwigia repens is a familiar and very beautiful aquarium plant. It generally makes few demands and grows fast, but the red colour is more intense if the light is good. When pruned it develops countless side shoots and becomes more bushy. Suitable as an intermediate or background plant, and most effective when planted in groups.

• Height: 30-50 cm
• Width: 5-8 cm
• Light requirements: medium-very high
• Temperature: 15-26 °C
• Hardness tolerance: very soft-hard
• pH tolerance: 5.5-8
• Growth: fast
• Demands: easy

Ludwigia sp.

Ludwigia species (family Scrophulariaceae). This is most likely a variety  of Ludwigia repens and is very similar in all its requirements and growth  except it is slightly more robust. This plant can be grown in bunches in the  aquarium and cut back when it grows to tall to make the plant branch out more.  This plant may be polyploide because the seeds do not seem to be fertile and  its growth is very fast.

Habitat

Largely aquatic. In open aquaria the plant easily grow out of the water where yellow flowers are produced. It is an easy plant which is propagated by cuttings. Cutting the larger plant also results in a more bushy appearance. Ludwigia repens requires a quite nutrient rich substrate as most other fast growing plants. During the summer-time Ludwigia repens can be grown outdoors in shallow ponds.