CaribSea Life Rock Single Arch 18"LifeRock Large Arches add open dimension to large marine and reef aquariums with plenty of swim space and area for coral placement. Each Large Arch is 18 inches long and weighs approximately 20 pounds. One arch per box *please do note dimensions and weights varies as these are hand made products. Life Rock is real aragonitic base rock, not cement, no curing. Extensive macro and micro porosity infused with spored bacteria for outstanding biological

Newest lineup from New Life Spectrum featuring the nature Series

selenium and vanadium in pure mineral form

Using a HYDROS aquarium controller for your auto top-off system is not only a reliable solution but it also helps clear wire clutter in and around your aquarium

The biggest pitfall of using an automatic doser is keeping the product fresh

we try to find the dimmest locations to keep them

such as SpongExel

Highly Concentrated Chromium

Does not disrupt ionic balance

All ingredients in the new formulas are preserved using natural preservatives

Easy to Use

a fast growing small polyp stony (SPS) coral known for bright colors and thin delicate branches that form a dense tangled cluster

The natural seawater concentration of all iodine species combined is approximately 0