Mopani Hout 52 Titel:Default Title or Ohko Stone

or Ohko Stone

Lava stone is porous and does not affect water quality

and you can proceed to place it in the aquarium

that stuff is hardly usable because it disappears so quickly in the aquarium water

for example

Mopani Hout 52 Titel:Default Title or Ohko StoneMopani wood is a type of wood perfectly suited for use in both aquariums and terrariums. This wood comes from the African Mopani tree. It has a beautiful, layered structure with a dark brown to almost black color, and often shows patterns and veins that make it visually interesting. Use in Aquariums: In aquariums, Mopani wood offers numerous benefits. The wood is not only decorative but also has a mild tannin content, which results in less water