Grow your own Aquarium Dwarf Hair Grass carpet from Small Cow Hair aquarium grass seeds — one of the most popular and widely used aquarium carpet plant seeds for creating stunning natural aquascape displays in freshwater fish tanks. These ultra-fine thread-like grass seeds germinate directly in aquarium substrate — creating a beautiful dense natural low-growing grass carpet across the fish tank foreground in as little as 15–30 days. Ideal for Nature Style and Iwagumi aquascapes. No CO2 required — high light strongly recommended. Distribute seeds evenly across moist aquarium substrate and add water once sprouted.