Support a healthier, more biodiverse reef ecosystem. Isol8:Si delivers a stabilized, highly soluble silicate source designed for controlled elevation of dissolved silicon in saltwater—fueling sponge growth, encouraging beneficial diatom activity in refugia, and helping stabilize young or ultra-clean systems without relying on messy additives.
Bioavailable silicate for marine systems—readily utilized by sponges and diatoms.
Controlled dosing—formula designed for predictable, incremental adjustments.
Refugia & biodiversity friendly—supports natural microfauna pathways that polish water.
Reef-safe when used as directed—compatible with corals, fish, and inverts.
Blueprint integration—pairs cleanly with the Captiv8 BluePrint methodology and other Isol8/Aragonite supplements.
Test first: Measure dissolved silicate with a reliable low-range checker.
Start low: Dose per label for total system volume. Begin at ½ dose for the first week.
Ramp carefully: Increase in small steps as needed to reach a low, non-zero silicate level appropriate for your goals (sponges/refugia).
Dose location: Add to a high-flow area of the sump; avoid direct contact with corals.
Monitor: Track NO₃/PO₄ and glass film/diatom behavior; adjust frequency accordingly. Do not overdose.
Tip: For new or “too clean” systems, alternate light silicate dosing with your bacterial program to encourage balanced biofilms.
Maintain stable reef parameters: Alk 7.5–9 dKH, Ca 420–450 ppm, Mg 1280–1380 ppm, Salinity 1.025–1.026, Temp 77–79°F.
Keep nutrients modest but measurable; extreme ULNS can stall biodiversity even with added silicate.
Use mechanical filtration (socks/floss) and clean it frequently as communities establish.
If you see persistent nuisance diatoms in the display, reduce dosage and shift additions to the refugium while you fine-tune export.
Works alongside protein skimming, carbon/GFO (avoid adding immediately before fresh media swaps), refugia, bacterial supplements, and amino/trace programs.
Space silicate dosing several hours away from strong oxidizers/sterilizers (UV/ozone/peroxide).
Product: Captiv8 Reef BluePrint Isol8:Si
Format/Size: 60 mL liquid silicate supplement
Use Case: Support sponge growth, controlled diatom activity, biodiversity seeding, and early-stage stabilization
System Types: Marine/reef, FOWLR with refugia
Storage: Keep sealed, room temperature, out of direct light.
Safety: Aquarium use only. Keep out of reach of children and pets.