ESV Aquatics B-Ionic Calcium Buffer System — 2-Part Calcium & Alkalinity Maintenance for Saltwater Reefs (64 oz)

What is the B-Ionic Calcium Buffer System?

ESV Aquatics presents an original, two-component liquid supplement designed for saltwater reef aquariums. Built on Balanced Ion Technology, it delivers calcium and carbonate alkalinity without organic additives or powders, offering a straightforward way to support reef chemistry.

How it works

The system is split into Part 1: Alkalinity Component and Part 2: Calcium Component. Dosing each part separately helps prevent mixing issues and keeps the ionic balance intact. It also assists in replacing inorganic ions that can be lost during protein skimming and filtration, supporting a stable water matrix.

Beyond calcium and alkalinity, the formulation provides a spectrum of major, minor, and trace elements in proper ratios to resemble synthetic seawater, helping the overall chemistry of the system stay balanced as corals grow.

Why reef keepers choose B-Ionic

• Requires no mixing of powders and avoids introducing organic compounds.
• Offers a simple, economical alternative to calcium reactors and complex dosing schemes.
• Maintains calcium and alkalinity while supporting ionic balance for a thriving reef environment.
• Includes a full complement of important elements to support calcification and color development in corals.

Real-world use and benefits

In practical reef-keeping, hobbyists appreciate the predictable dosing routine and the potential to sustain growth in both SPS and LPS corals without dramatic shifts in water chemistry. The two-part design aims to fit into common maintenance schedules.

• Ideal for hobbyists seeking reliable calcium and alkalinity maintenance without a calcium reactor.
• Suitable for mid- to large-sized systems where manual dosing is preferred over automated setups.
• Helpful when aiming to preserve a balanced trace element profile alongside calcium and carbonate alkalinity.

What you get

Two components packaged for reef-safe maintenance: Part 1 Alkalinity Component and Part 2 Calcium Component, designed to work together to support stable water chemistry.