Stabilize alkalinity and calcium demand by keeping magnesium (Mg) on point. Isol8:Mg is an ultra-pure, stabilized magnesium solution engineered for the Captiv8 BluePrint methodology and test-driven reef keeping. Routine, precise dosing maintains Mg within range to support SPS/LPS calcification, minimize abiotic precipitation, and preserve ionic balance—without impacting clarity or nutrients.
High-purity Mg for sensitive, low-nutrient reefs.
Predictable concentration for accurate manual or automated dosing.
Stability enabler — adequate Mg helps keep Ca/Alk balanced and consistent.
BluePrint-ready — slots into Captiv8 schedules and ICP/spot-test routines.
Doser-friendly — ideal for continuous micro-additions after calibration.
Two sizes — 355 mL for smaller systems/testing and 1006 mL for long-term or high-demand use.
Test first: Measure magnesium and confirm your target (commonly 1280–1380 ppm for mixed reefs).
Calculate dose: Use the label’s dose-to-ppm relationship for your total system volume (display + sump minus displacement).
Split corrections: If a larger increase is needed, add in multiple small doses over 24–48 hours.
Maintenance: Establish a daily or every-other-day dose that matches uptake; verify with weekly tests and adjust.
Add in high flow (sump/overflow). Do not mix in the same container with alkalinity, calcium, or concentrated traces.
Bring alkalinity (7.5–9 dKH) and calcium (420–450 ppm) into range, then fine-tune Mg for long-term stability.
Keep salinity stable (1.025–1.026); large, unscheduled water changes can swing Mg.
Time additions away from fresh carbon/resin swaps for consistent contact time.
If precipitation/film appears, reduce single-dose size and increase frequency.
Log all additions; align with your BluePrint testing cadence and any ICP results.
Safe alongside skimmers, carbon, phosphate media, refugia, and bacterial/trace programs (dose at different times).
Works with two-part, kalkwasser, and calcium reactors; keep additions separate and in high flow.
Avoid simultaneous dosing with strong oxidizers.
Product: Captiv8 Reef BluePrint Isol8:Mg
Format/Sizes: 355 mL and 1006 mL ultra-pure magnesium solutions
Function: Correction and maintenance of magnesium at reef-appropriate levels to stabilize Ca/Alk consumption
Use Case: Daily maintenance and stepwise corrections in SPS/LPS/mixed reefs
System Types: Marine/reef (test-driven major-ion management)
Storage/Safety: Keep sealed at room temperature, out of direct light; aquarium use only; keep out of reach of children and pets.