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12 MICRO LAVA ROCKS
Set of 12 very small volcanic rocks - use to aquascape your nano tank
Creates the perfect habitat for fish & shrimp - providing a natural look and environment
Each rock measures approx 10 - 30mm
These rocks are inert so will not alter the water parameters of your tank
Their porous structure provides a large surface area for nitrifying bacteria to colonize, helping to eradicate toxic ammonia and nitrites
These rocks vary from black through to red in colour. You will be sent rocks of same/similar colour.
Great for creating mini walls, caves, terracing and moss carpets
** £3 postage for single or multiple purchases of these rocks**
On 05-Sep-11 at 13:21:45 BST, seller added the following information: