Red Sea

RedSea Trace Colors A (Iodine/Halogens) - 500 mL

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Red Sea Trace Colors A contains an Iodine and Halogen complex to help promote the pink colors in corals.

1 mL will raise the iodine level of 25 gallons (100 liters) by 0.03 ppm.


Through extensive research, Red Sea has identified 31 trace and minor elements that help make up the skeleton and soft tissue of corals. These elements are essential to the proper coloration of SPS corals. Red Sea has divided these elements into four groups which make up there Red Sea Trace Colors.

  • Red Sea Trace Colors A (Iodine/Halogens) - promotes pink colors
  • Red Sea Trace Colors B (Potassium) - promotes red colors
  • Red Sea Trace Colors C (Iron/Complementary Trace Elements) - promotes green colors
  • Red Sea Trace Colors D (Trace Element Complex) - promotes purple/blue colors


Red Sea Trace Colors Manual

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UPC 730773220434
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Product Questions

Can this be used as an Iodine dip for corals?
Question by: Nick Linarello on Dec 24, 2017, 10:03 AM
Thanks for reaching out to BRS!

This particular item is designed as an element supplement and not a coral dip for getting rid of pests. We would recommend Lugol's or CoralRx Coral Dip.

Have a great day.
Answer by: Josh Cuta on Dec 26, 2017, 4:21 PM
I have the brs 2 part system but have not had to use it yet as I am testing my alk and my cal and they are not being absorbed fast enough for me to add. I want to start using this product but I don't know how much to dose since I'm not having to add any cal yet. Is there a way to know hoe much to add without going off that? I have a about 90 gal of water in my tank.
Question by: Rebecca milligan on Apr 20, 2016, 9:52 PM
Great question!
We are only familiar with adding the amount via calcium and alkalinity uptake. Currently we do not know of instructions outside of that source.
Answer by: Connor on Apr 26, 2016, 2:42 PM
can I mix the red sea coral colors a,b,c,d together? Can i do the same with the red sea engery a &b?

I would like to put them all in one bottle and use a doser....not sure if I can combine them all.
Question by: Jon on Jun 22, 2014, 2:37 PM
Hi Jon,
Sorry but they cannot be mixed together in the same container. The different reagents will react with each other in those concentrations so they have to kept separate until added to the tank.
Answer by: Bulk Reef Supply on Jun 22, 2014, 2:37 PM