Black Lava Rock per KG

Lava rock is popular in planted aquariums due to it's rough texture - ideal for planting mosses on. It can also be used stacked upon one another to build an aquascape.

Lava rock is much more lightweight than other rocks, formed by the solidification of magma.

An average piece weighs about 1KG each. We use this size for most of the weight and make up the rest with smaller pieces. 

If you have specific requirements please let us know using the comment box at checkout and we will do our best to fulfill your requirements.

We would suggest using 10KG per 50L. For example, for a 100L tank use 20KG. An average piece weighs approximately 1-2KG. We aim to include range of sizes and shapes