Superfish Lava Rock Filter Media - 10L Type_UVC & Filter Parts The Oase CrystalSkim is an

The Oase CrystalSkim is an effective Aquarium Skimmer that is full of features to help keep tank water clear

*Please Note* biOrb's built-in microprocessor and humidity sensor monitor the water levels automatically by using electrolytes in the water (total dissolved solids) as a means to physically detect the water

Liner Length Required: Max Pond Length + 2x Maximum Pond Depth

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Superfish Lava Rock Filter Media - 10L Type_UVC & Filter Parts The Oase CrystalSkim is anSuperfish Lava Rock is a natural filter media which acts as a great substrate addition or replacement within an aquarium or pond filter process. The coarse structure of the lava rock ensures optimum biological filtration action. Many people use this as a base for rocks or as an economical way of increasing subsrate depth. Please note These rocks are natural, so colours may vary due to the nature of the product. Specifications Size: 10L