Hygrophila serphyllum Hygrophila serphyllum is a rare and unusually compact Indian Hygrophila species that stays under 3 inches — making it one of the few genuinely foreground-capable Hygrophila plants available. The small, rounded leaves and creeping to mat-forming growth habit create a low, spreading carpet-like coverage that can be used as a foreground carpeting plant under high light. When grown emersed it produces charming purple flowers, adding seasonal interest to paludariums and open-top setups. Care tip: Hygrophila serphyllum grows best in moderate lighting with CO₂ optional. Maintain temperatures of 68–82°F and pH 6.0–7.5. Regular liquid fertilization supports healthy growth and best coloration. Growing to just 1 to 3 inches, serphyllum is uniquely scaled for foreground use among Hygrophila species. It can also be attached to rock and wood where it develops a creeping, mat-forming habit. Regular trimming maintains compact, dense coverage. Under high light it produces the most compact, carpet-like growth — under lower light it tends to grow more loosely and less densely. This moderate plant grows in medium lighting with CO₂ optional. Temperatures between 68 and 82°F and a pH of 6.0 to 7.5 provide comfortable conditions. Regular fertilization supports the compact, continuous growth needed for effective foreground carpeting. Higher light consistently produces the most compact, carpet-quality growth from this species. In the aquascape, Hygrophila serphyllum is most valuable as a foreground carpeting plant — a role where its small, mat-forming growth distinguishes it from virtually every other Hygrophila species. It also provides interesting detail work attached to low pieces of driftwood or stone. The purple emersed flowers add seasonal botanical interest in open-top and paludarium setups. Hygrophila serphyllum is a genuinely unusual and practically versatile Hygrophila for aquarists who want a foreground-capable stem plant with creeping, mat-forming character. Its tiny size and unusual carpeting ability make it a rare and rewarding species in a genus known for tall background plants. Care & Specifications Difficulty Moderate Placement Foreground to Midground Max Height 1 to 3+ inches Light Level Moderate Temperature 68–82°F pH 6.0–7.5 CO2 Needs Optional Origin India Notes A rare creeping Indian Hygrophila that stays under 3 inches, making it one of the few true foreground-capable Hygrophila species. Can be used as a carpeting plant under high light. Attaches to rock and wood and produces purple flowers when grown emersed.