yes,Its ph is very close to neutral, except for particularly strict requirements of the environment. .After water changes to stabilize the water, It is stable in nature and does not affect aquarium's composition or increase the hardness of the water.

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LANDEN Black Icelandic Lava Stone Natural Rocks (18lbs, 3~11 inches,11pcs) for Aquariums, Paludariums, Terrariums, Caves and Rocky Peaks, Mountainous Desert Landscapes

Q: How do get black lava rock to sink?

Icelandic Lava Stones are porous, which may hold air inside, causing them to have buoyancy and float in the water. In such a case, soak them in water for 1~3 days, wait for the air to be evacuated.hot water may speed up the air expulsion.

Q: Is it normal if there is an odor?

It is normal if the stone in the package has a peculiar smell. The stone has volatile alkaline organic matter in its natural state. The peculiar smell will disappear if you put them in a ventilated place to dry for 24 ~ 48 hours.

Q: The stone has sand and dust, causing the water to become cloudy what to do?

Use a small brush to gently sweep away the sand and dust on the surface before putting it into the tank and then rinse it with clean water.

Q: Is the stone purely natural and does it have any chemicals?

Black lava is of volcanic origin and is rich in minerals and trace elements.It is naturally formed without any added chemicals.

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LANDEN Black Icelandic Lava Stone Natural Rocks (18lbs, 3~11 inches,11pcs) for Aquariums, Paludariums, Terrariums, Caves and Rocky Peaks, Mountainous Desert Landscapes

Have a Question? See What Others Asked

How do get black lava rock to sink?

Is it normal if there is an odor?

The stone has sand and dust, causing the water to become cloudy what to do?

Is the stone purely natural and does it have any chemicals?

Is it PH inert?

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