Fish Tank Stone Aquarium Filter Cave Natural 6*6cm

Description

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\r\nThis is a set of 450g volcanic rocks for water tank. It is able to absorb harmful waste to keep the water tank in stable condition. Can be used as filter material for drinking water and feeding water, can store out of trace elements, oxygen, water balance.

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Features

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\r\n- ColorDark Brown

\r\n- Material: Volcanic rocks.

\r\n- Size: About 6x6x6cm.

\r\n- The surface covered with many pores.

\r\n- It is able to absorb waste to keep the water tank in stable condition.

\r\n- Breathable water permeability is good, help to cultivate and produce.

\r\n- is suitable for all marine and fresh water aquariums.