Cryptocoryne bullosa

Cryptocoryne bullosa comes from the shaded, peat-stained rivers of Sarawak, Borneo, where it grows submerged in soft, acidic blackwater. Its common name refers to its remarkably inflated, blister-like leaf surface texture (bulla = blister in Latin) which gives the plant a uniquely tactile, sculptural appearance. It is a slow grower that prefers stable, mature aquarium conditions and soft, slightly acidic water, and rewards patient aquarists with one of the most remarkable leaf textures in the entire plant kingdom.