Hottonia inflata

Geographical Origin and Habitat: Hottonia inflata is native to the eastern and southern regions of North America, where it inhabits slow-moving or stagnant waters such as ponds, ditches, swamps, and shaded floodplains. It is a marsh plant adapted to seasonal water level fluctuations, growing fully submerged during high water periods and emersed on muddy banks when the water recedes.

Taxonomy & Genetics: Taxonomically, it belongs to the Primulaceae family and is the only species of the genus Hottonia native to the American continent, closely related to the European Hottonia palustris. Genetically, this species exhibits unique adaptations for survival in nutrient-poor waters, such as swollen, hollow stems that facilitate buoyancy and gas exchange.

Physical Structure: It features erect, fleshy, and branched stems that can reach a height of 30-50 cm in the aquarium. The leaves are arranged in whorls along the main stem and are deeply divided into needle-like segments, giving the plant an extremely feathery and light appearance. The stem often has short internodes that enhance the compact, bushy appearance of the tops.

Color & Texture: The dominant color is a bright, light green, almost translucent, which adds freshness and light to the aquascape. The texture of its pinnate fronds is extremely fine and soft to the touch, creating a strong visual contrast when placed next to broad-leaved plants or dark moss-covered driftwood.

Lighting & CO2: Requires moderate to intense lighting to prevent the lower stems from shedding leaves due to shading. Constant CO2 injection is highly recommended to promote compact growth and prevent the internodes from stretching too much.

Nutrition & Substrate: The plant absorbs most of its nutrients from the

Water Chemistry: Prefers soft and slightly acidic water, with an optimal pH range between 6.0 and 7.0 and a KH below 6. It is highly sensitive to high temperatures, preferring cool water between 15 and 25 °C, and tends to decay or rot quickly if kept constantly above 26 °C.

Space Management & Placement: Position the plant in the midground or background, planting individual stems a few millimeters apart to allow light to reach the base. It is ideal for Dutch-style aquariums or natural layouts where a soft, light green focal point is desired.

Pruning: Pruning is performed by cutting the tops of the stems and replanting them in the substrate to propagate the plant. The remaining stem portion will quickly produce numerous lateral shoots, making the bush even denser and more branched.

Risks & Diseases: The main risk is associated with high summer temperatures and poor water circulation, which can cause the base of the stem to rot. Furthermore, due to the fine structure of the leaves, it tends to trap organic debris, favoring the growth of filamentous algae.