WIO - Ryuoh Boulder Nano Stone 2kg Reverse osmosis The high Vitamin D3 yield

The high Vitamin D3 yield index ensures vitamin D3 photosynthesis to aid calcium absorption and prevent metabolic diseases

Whole Wheat Flour

primarily calcium

- Its porous surface provides a perfect texture for beneficial bacteria to grow

Comes in black

WIO - Ryuoh Boulder Nano Stone 2kg Reverse osmosis The high Vitamin D3 yieldWIO Ryuoh Boulder Nano Stone 2kg Ryuoh Boulder Nano Stone brings the iconic strength of Ryuoh stone into a rounded, sculptural form. With its smooth contours, dark tones, and natural marbling, it's perfect for creating organic layouts in nano aquariums, terrariums, and paludariums. Learn More: Ryuoh Boulder Nano Stone is a river shaped of the traditional Ryuoh stone one of aquascapings most recognizable and beloved materials. Naturally rounded and