Gymnocalycium friedrichii LB 2178 'Agua Dulce' — Gymnocalycium. Small dark cactus with white areoles and clear geometry. Family: Cactaceae.

• Pot diameter: 6.5 cm.
• Light: Very bright spot, with mild sun and gradual adjustment to more intense exposure.
• Watering: Sparse, only when the substrate has completely dried out.
• Substrate: Very well-draining cactus mix, with a high percentage of inorganic materials.
• Color/form: Dark green to brownish-purple body, with pronounced ribs and white areoles.
• Line: LB 2178, Agua Dulce, Alto Paraguay, Paraguay.
• Toxicity: Non-toxic, suitable for spaces with children and pets, with caution around the spines.

The form is low and compact, highlighting the dark shades and white areoles. It is recommended to place the plant in very bright locations near a window and to use a light, well-draining substrate. Watering is done only when the substrate has completely dried out.