Java Fern Needle Leaf

Excessive green, brown, or black algae coating fronds and reducing light penetration

Reduce lighting duration to 6-8 hours daily, increase water changes, add algae-eating fish or shrimp, improve water circulation

Yellowing fronds, stunted growth, pale coloration, or holes in leaves

Add comprehensive liquid fertilizer containing macronutrients and micronutrients; ensure adequate fish waste or consider CO2 supplementation

Blackening or mushy appearance at the plant's base where it attaches to hardscape

Ensure proper attachment (not buried in substrate), improve water circulation, remove affected portions, maintain stable water parameters

Rapid deterioration and dissolution of fronds after introduction to new tank

Maintain stable water parameters, avoid drastic temperature changes, ensure adequate lighting and nutrients, be patient as plant acclimates