Coral Essentials Magnesium+Trace 500ml

Description

Coral Essentials Magnesium+Trace 500ml — Concentrated magnesium and trace supplement for reef systems

Low magnesium lets calcium and alkalinity interact less efficiently, which is why a stalled KH reading in a reef tank often traces back to magnesium rather than the carbonate dose itself. Coral Essentials Magnesium+Trace 500ml (SKU: CE-MAG500) is the 500 mL size of Coral Essentials’ liquid magnesium supplement, formulated at 12,500 ppm and blended with the maker’s Coral Power Potassium, dosed using what Coral Essentials calls its Coral Essentials Method. The 500 mL size suits a smaller system or a trial of the product before committing to one of the larger bottles in the range.

Coral Essentials gives the same two dosing paths used across its range. The simple recipe is a daily dose per 100 L of tank volume: 3 mL for a soft coral or LPS system, 6 mL for a mixed reef, or 12 mL for an SPS-dominant system. According to the maker, 1 mL raises magnesium by 0.125 ppm per 100 L of tank water, so a 6 mL daily dose in 100 L raises magnesium by about 0.75 ppm that day. The alternative is to test magnesium regularly, measure the depletion rate and calculate the dose with the maker’s online calculator, retesting as coral growth and new additions change demand. Coral Essentials targets roughly natural seawater magnesium levels for general reef-keeping, rising to 1300 to 1350 ppm for high growth in SPS and hard coral-dominant systems.

Usage & Application

When to Use

• Low magnesium readings: When testing shows magnesium below the target range.
• Stalled alkalinity or calcium: Low magnesium can limit how well calcium and carbonate interact.
• Smaller or new systems: The 500 mL size suits a smaller tank or a first-time trial.
• SPS and hard coral tanks: Higher target range for systems aiming for faster growth.

Dosing & Administration Guide

• Soft coral/LPS systems: 3 mL per 100 L of tank volume, daily.
• Mixed reef systems: 6 mL per 100 L of tank volume, daily.
• SPS-dominant systems: 12 mL per 100 L of tank volume, daily.
• Calculated dosing: Test magnesium regularly and dose to the depletion rate using the maker’s calculator.

Product Specifications & Highlights

Key Features

• 12,500 ppm magnesium: Concentrated liquid magnesium source.
• Coral Power Potassium included: A trace potassium component in the same bottle.
• Known dosing effect: 1 mL raises magnesium by 0.125 ppm per 100 L.
• Two dosing methods: A simple daily recipe or calculated dosing against test results.
• Trial-friendly 500 mL size: Suits a smaller system or a first purchase.

Product Details

• Brand: Coral Essentials
• SKU: CE-MAG500
• Barcode (GTIN/UPC): 787099331597
• Product Type: Additives & Supplements > Marine Magnesium & Trace Supplement
• Net Volume: 500 mL
• Concentration: 12,500 ppm magnesium
• Dose Rate: 3 mL (soft/LPS), 6 mL (mixed reef) or 12 mL (SPS) per 100 L daily
• Dosing Effect: 1 mL raises magnesium by 0.125 ppm per 100 L
• Target Magnesium: Natural seawater level; 1300–1350 ppm for high-growth SPS/hard coral
• Trace Elements: Coral Power Potassium
• Other Sizes: Magnesium+Trace 10L (SKU CE-MAG10L); Magnesium+Trace 2.75L (SKU CE-MAG275L)
• Target Environment: Marine (reef) aquariums