Keep potassium (K) in the ideal range for vivid coloration and steady metabolism. Isol8:K is an ultra-pure, stabilized potassium solution engineered for the Captiv8 BluePrint methodology and test-driven reef keeping. Routine, precise dosing supports SPS/LPS polyp vitality, enhances blue/purple hues, and maintains ionic balance—without impacting nutrients or water clarity.
High-purity K suitable for sensitive, low-nutrient reefs.
Predictable concentration for accurate manual or automated dosing.
Color & tissue support—helps sustain chromoprotein expression and overall resilience.
BluePrint-ready—fits directly into Captiv8 schedules and ICP/spot-test workflows.
Two sizes—355 mL for smaller systems/testing and 1006 mL for long-term or high-demand use.
Doser-friendly—ideal for continuous micro-additions after pump calibration.
Test first: Measure potassium and confirm your target (commonly 380–420 mg/L 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 required, add in multiple small doses over 24–48 hours.
Maintenance: Establish a daily dose that matches uptake; re-test weekly and adjust.
Add in high flow (sump/overflow). Do not mix in the same container with alkalinity, calcium, or other concentrates.
Bring alkalinity (7.5–9 dKH), calcium (420–450 ppm), and magnesium (1280–1380 ppm) into range before locking in potassium consumption.
Keep salinity stable (1.025–1.026) and avoid large, unscheduled water changes that can swing K.
Dose away from fresh carbon/resin swaps for consistent contact time.
Heavy export (strong skimming, large refugia) can raise K demand—verify more frequently in such systems.
Log additions and align with your BluePrint testing cadence.
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:K
Format/Sizes: 355 mL and 1006 mL ultra-pure potassium solutions
Function: Correction and maintenance of potassium at reef-appropriate levels for coloration and metabolic support
Use Case: Initial correction and ongoing daily maintenance 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.