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Didiplis Diandra
Didiplis diandra
Plantae›Tracheophyta›Magnoliopsida›Lythraceae
📍 North America
A slender, delicate stem plant with fine, needle-like opposite leaves. Under high light and CO2 it develops vivid orange-red colouring that makes it a stunning accent in Dutch and Nature Aquarium layouts. It is sensitive to low light and nutrient deficiencies, which quickly cause yellowing.
Tank Mates
Small, peaceful algae grazers that won't damage delicate stems or uproot the plant
Gentle invertebrates that graze algae without harming plant tissue; thrive in similar water parameters
Small, peaceful schooling fish that add color without disturbing planted layouts
Complementary foreground plant that shares similar nutrient and CO2 requirements
Fellow stem plant with comparable care needs; creates attractive contrast in mid-background
Peaceful dwarf cichlid that won't uproot plants; prefers similar warm water temperatures
Common Diseases
Nutrient Deficiency (Nitrogen/Iron)
Yellowing of new growth, pale leaves, stunted growth despite adequate light
Increase fertilizer dosing with all-in-one or iron-specific supplements; ensure CO2 is present; test water parameters and adjust macro/micronutrient balance
Algae Overgrowth (Green/Black Spot)
Green or black algae coating stems and leaves, reduced photosynthesis, plant decline
Reduce photoperiod to 8-10 hours daily; increase water changes; add algae-eating fish like Otocinclus or shrimp; ensure CO2 and nutrients are balanced
Melting (Tissue Decay)
Rapid leaf loss, mushy stems, plant deterioration after introduction or environmental shock
Maintain stable water parameters (pH 6.0-7.0, temperature 20-28°C); ensure consistent CO2 injection; perform 25% water changes; trim affected portions and allow plant to recover
Low Light Stress
Pale coloration, loss of red pigmentation, elongated internodes, slow growth
Increase light intensity to 2+ watts per liter; verify lighting duration is 8-10 hours daily; move plant to higher-light area of tank if possible
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Quick Facts
- co2
- Required
- light
- High
- placement
- Mid–Background
- tank size
- 15 gallons minimum
- growth rate
- Moderate
Water it likes
- ph
- 6.0–7.0
- hardness
- 2–10 dGH
- temperature
- 68–82°F (20–28°C)