WIO McDonald Lake Boulder Nano Stone 2kg bio co2 fish-safe materials

fish-safe materials

Helps reduce algae growth by improving plant competitiveness

Fan Filter Micro is especially well suited for bowls and paludariums

Optimal Spawning Surface: Smooth and tapered design provides a natural and inviting surface for egg-laying fish

WIO McDonald Lake Boulder Nano Stone 2kg bio co2 fish-safe materialsMcDonald Lake Stones WIO McDonald Lake Nano Boulders are a lovely mix of contrasting, natural, mixed coloured rounded stones that will brighten up any aquarium or aquascape. These look particularly good when placed with WIO Bumblebee Gravel, or Tigris Sand. May ever so slightly raises the pH level of aquarium water. Boulder sizes up to 10cm. Available in 2kg packs. Please note: Due to these being a natural product, size, shape and colour will differ