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Walt Smith's Reef Rock 2.1 Rock
Please Note: Due to variations within species, your item may not look identical to the image provided. Approximate size range may also vary between individual specimen.
Walt Smith's Reef Rock 2.1 Rock (Calcium carbonate)
Product Notes:
· We cannot ship this product to Alaska.
We're sorry, oversized items on this page cannot be shipped by air.
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Quick Stats

Water Conditions 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.023-1.025
Supplements Calcium, Strontium, Iodine, Trace Elements
What do these Quick Stats mean? Click here for more information


We are excited to offer the Walt Smith’s Reef Rock 2.1. This beautifully colored and uniquely shaped aquarium rock is helping to reduce the impact on wild harvested live rock. Whether you're establishing a new aquarium, or topping off an existing aquarium with this affordable, beautifully manufactured aquarium rock, your aquarium will be filled with a diversity of shapes and colors once you have completed the curing process.

This Fijian hand crafted aquarium rock is manufactured with natural materials in Walt Smith’s facility in Fiji. Walt Smith’s Reef Rock 2.1 contains pumice (volcanic rock) which will make the rock a bit lighter than wild harvested live rock. Lighter rock means a bit more rock to fill your aquarium spaces. This beautifully colored rock is pink and red throughout the entire rock making this a great choice for anyone who is looking to make their own shapes just use a hammer and chisel to create your own shapes.

Walt Smith International is committed to Fijian community based farming projects such as Reefproject 2.0 and the Coral Ark Project which adds much needed income and coral farming knowledge to many Fijian villagers. Walt Smith also contributes a portion of Reef Rock 2.1 sales to the ADE project.

Reef Rock 2.1 is beneficial for both reef aquariums and fish-only tanks. It will provide a solid foundation for coral in the reef aquarium, and a natural aquascape in a fish-only aquarium. Walt Smith’s Reef Rock 2.1 is easy to maintain in the aquarium, and makes an excellent candidate for the beginner to the expert aquarist. This type of rock requires moderate lighting and moderate water movement, along with the addition of calcium, strontium, iodine, and trace elements to encourage and maintain coralline algae growth.

We are offering Walt Smith’s Reef Rock 2.1 in a 40lb box with an assortment of pieces ranging from 5” to 10” and is ideal for larger displays. The recommended weight per gallon is between 1-1/4 to 1-3/4 lbs. This quantity will create a beautiful aquascape, with many open holes and crevices for marine life to hide. For aquascaping, it is acceptable to alter the shapes and sizes of the rock with a hammer and chisel. This will not damage the integrity of this manufactured rock.

Upon arrival, we recommend placing your Walt Smith’s Reef Rock 2.1 in a curing bin of salt water until the pH reads 8.0-8.4 and the ammonia and nitrites read 0, prior to introducing into your display aquarium.

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