Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

Best suited for the midground or background of the aquascape. Its dense, bushy growth makes it perfect for creating contrast against lighter green plants or hardscape. It should be planted where it receives strong, unobstructed lighting.

Botanical form

Stem

Features fine, needle-like leaves that grow opposite each other along the stem, giving it a delicate, cross-like appearance when viewed from above. Under intense light, the tips turn a beautiful vibrant red to orange. The plant naturally branches out to form thick, compact bushes.

Growth

Medium

Exhibits a fast growth rate when provided with optimal conditions, including high light and CO2 injection. Its rapid growth requires regular pruning to maintain its shape and prevent it from overshadowing neighboring plants. Without CO2, its growth significantly slows down and it may struggle.

Substrate

High

Didiplis diandra requires a nutrient-rich substrate, preferably a fine-grained aqua soil, to support its delicate stem structure. The fine texture allows its fragile roots to easily penetrate and anchor securely into the bottom. A substrate depth of 4-5 centimeters is necessary to supply an uninterrupted flow of micronutrients, especially iron, which is essential for vibrant reddish tips. A well-fertilized bed significantly enhances its density and overall health in the aquarium.

Column fertilization

Recommended

Demands consistent and comprehensive liquid fertilization. Adequate levels of nitrate and phosphate are essential for its overall health, while iron is key for its pigmentation. Insufficient water column nutrients will quickly result in pale, stunted growth and leaf loss.

Root fertilization

Recommended

While it primarily feeds through the water column, a nutrient-rich substrate greatly supports its development. Aquasoil or root tabs will help anchor the plant and provide a supplemental nutrient reserve. Strong root growth is beneficial for establishing large, healthy groups.

Trimming

Regular

Requires frequent trimming to maintain a compact, bushy shape. Pruning the tops encourages lateral shoots, making the bush denser. However, if trimmed too often without allowing it to recover, the lower stems can become exhausted and rot.

Propagation

Cuttings

Easily propagated by cutting the top portions of the stems and replanting them. Ensure that the cuttings are planted with a little space between them to allow light to reach the bottom leaves. The remaining trimmed stems will readily produce side shoots.

Sensitivity

HIGH

Known for being a somewhat sensitive and demanding plant. It is highly susceptible to algae if nutrient levels are imbalanced or if water circulation is poor. It requires clean, well-oxygenated water and strongly dislikes sudden changes in water parameters.

Layout role

Midground, Background, group

Acts as a brilliant focal point or color accent in the midground due to its reddish tips and fine texture. It is a classic choice in Dutch-style aquariums, where it is often shaped into a neat, colorful street. It provides excellent contrast against broad-leaved, green species.