Red Sea Trace Colors PRO - Multi Test Kit Iodine/Potassium/Iron

Red Sea's Trace Colors PRO Multi Test Kit accurately measures Iodine, Potassium, and Iron — three trace elements directly tied to coral pigmentation and coloration in reef aquariums. If you're dosing the Red Sea Trace Colors range and want to keep levels dialed in, this kit gives you the precision you need.

Pairs perfectly with the Red Sea Calcium Pro Test Kit, the Red Sea Reef Foundation Pro Multi Test Kit (Ca/Alk/Mg), or any Red Sea 4-Part Reef Care Dosing System.

Looking for more testing gear? Browse our Test Kits & Reagents collection.

• Measures three trace elements: Iodine (I₂), Potassium (K), and Iron (Fe)
• High-accuracy titration and colorimetric methods
• Designed for precise dosing of the Red Sea Trace Colors supplement range
• Part of the complete Red Sea Reef Care Program
• Affordable reagent refills available

• I₂ reagent A – 25 mL
• I₂ reagent B – 50 mL
• I₂ standard – 12 g
• Fe reagent A – 12 g
• Fe reagent B – 15 mL
• K reagent A – 15 mL, K reagent B – 20 mL, K reagent C – 15 mL, K reagent D – 20 mL
• Titrator, 5 mL syringe, 3 color cards, instruction manual

Who is this kit for?
Reef keepers dosing Red Sea's Trace Colors A, B, and C supplements, or anyone wanting to verify Iodine, Potassium, and Iron levels for coral color.

Is this a reef/saltwater-only kit?
Yes. It's formulated for saltwater reef systems.

Can I get refills?
Yes — Red Sea sells individual reagent refills so you're not buying the full kit every time.