Red Sea Foundation™ ABC+ Skeletal Elements Complete

The all-in-one skeletal element supplement designed for reefkeepers who want balanced, stable coral growth without juggling multiple bottles. Foundation™ ABC+ delivers every major, minor, and trace skeletal-building element in a single precision-blended powder—mirroring the exact ratios found in natural coral skeletons for consistent, reliable results.

Red Sea Foundation™ ABC+ is a uniquely formulated powder supplement containing all core skeletal-building elements—Calcium, Magnesium, Strontium, and Carbonate—combined with Red Sea’s Trace-Colors A & B elements (Potassium, Boron, Iodine & Bromine). This blend provides the precise elemental ratio corals naturally use when forming strong, healthy skeletons.

Designed to simplify reef supplementation, ABC+ is dosed according to Calcium uptake. As long as Calcium is consumed, every supporting element is replenished proportionally—ensuring balanced chemistry and eliminating the risk of skewed ratios that can weaken coral structure.

Key Benefits

• All-in-one skeletal supplement replacing individual Foundation A, B, C & Trace Colors A/B.

• Perfectly balanced ratios matching the elemental composition of natural coral skeletons.

• Supports strong, dense coral growth by maintaining stable Ca/Mg/KH/trace levels.

• Simplifies reef dosing—dose based on Calcium uptake alone.

• Ideal for mixed-reef and SPS-dominated systems seeking stable foundational chemistry.

Core Features

• Complete element blend

  • Calcium, Magnesium, Strontium & Carbonate

  • Potassium, Boron, Iodine & Bromine
    Formulated in the precise ratio corals consume.

• Highly concentrated powder

  • 1g raises Ca by 1.5ppm per 100L (25gal).

  • Long-lasting, economical dosing.

• Flexible dosing strategy

  • Daily dosing: test Foundation elements weekly and adjust using individual A/B/C if required.

  • Weekly dosing: test monthly to maintain perfect balance.

• Stable, predictable chemistry
  Eliminates elemental drift when used consistently.

Technical Specifications

• Supplement Type: Powder

• Elements Included: Ca, Mg, Sr, Carbonate + K, B, I, Br

• Dosing Concentration: 1g raises 100L by 1.5ppm Ca

• Recommended Testing:

  • Daily dosing → test weekly

  • Weekly dosing → test monthly

• Available Sizes:

  • 1kg powder

  • 5kg powder

Who Is This Product For?

• Reefkeepers wanting a single, balanced skeletal supplement

• SPS-dominated systems requiring high, stable uptake of foundation elements

• Hobbyists wanting to simplify dosing without compromising precision

• ReefDose users seeking a streamlined, automated supplementation program