Pay in 4 interest-free payments of $3.69 Learn more
Ships within 48 hours · Estimated delivery Nov 11 - Nov 16
I/O Expansion
Over 50% stronger than most competing products
Dosing for permanent usage: 3 ml per 100L / 25 gallons daily
An organic waste degrader
so maintenance is almost non-existent
Brightwell Aquatics Reef Code A RO/DI accessories I/O ExpansionBalanced Calcium & Alkalinity System for All Marine Fish & Reef Aquaria. Overview: The calcium bearing component of a two part method for dosing calcium and carbonates (the substances largely responsible for increasing alkalinity (buffering capacity)) in the same ratio as that found in natural seawater. Ionically balanced with respect to natural seawater concentrations of calcium and carbonates when used in equal amounts with Reef Code B. Benefits