As an Amazon Associate we earn from qualifying purchases. Buying through these links costs you nothing extra and helps keep the app free.
The maker doses this by schedule rather than by a fixed potency, so the calculator cannot use it. Follow the directions below.
Dose at 0.5x the Part 1 volume daily (same as Part 3). No separate test; follows the weekly calcium result.
• Always dose in numerical order Part 1 -> 2 -> 3 -> 4, 10 minutes apart
• Max daily rise: Ca 20 ppm, Alk 1.4 dKH (0.5 meq/L)
• Intended for systems WITHOUT a refugium/algae scrubber; use the 7-part program if you have one
• Dose all parts by Ca uptake only; Red Sea warns that dosing by alkalinity overdoses Ca and traces
Part of Complete Reef Care 4-Part
Contains Fe, Mn, Co, Cu, Al, Zn, Cr, Ni plus 18 other trace elements. No per-ml concentration published; ratio-based only (0.5 x Part 1).
redseafish.com/reef-care-program/supplements/complete-4-part/
manuals.plus/red-sea/complete-reef-care-4-part-easy-dose-program-based-on-calcium-uptake-manual
bulkreefsupply.com/4-part-complete-reef-care-dosing-system-red-sea.html