Red Sea Trace Colours C 5L
Red Sea Trace Colours C 5L
Key features
- Iron plus seven metals — a broader trace metal blend than iron alone, in one supplement.
- Precise dosing reference — each 1 ml raises iron by approximately 0.01 ppm per 100 litres.
- Targets green and yellow coloration — one of four elements groups in Red Sea's coloration range, each linked to a different pigment family.
- Bulk 5 L size — lower cost per ml than the 500 mL bottle, suited to larger tanks or shops dosing multiple systems.
Specifications
| Element group | Composition | Pigment target | Dosing rate | Bottle size |
|---|---|---|---|---|
| Trace Colors C | Iron, manganese, cobalt, copper, aluminium, zinc, chromium, nickel | Green / yellow | 1 ml ≈ 0.01 ppm iron per 100 L | 5 L |
Dosage and directions
Test iron before dosing — Red Sea does not recommend a fixed daily amount for this range, since correct dosing depends on your tank's existing level and consumption rate. Use the 0.01 ppm per 100 L per ml figure to calculate a dose that brings your measured reading up to target, dosing Trace Colors D at a matching 1:1 ratio, then retest before dosing again.
Safety
Red Sea states that several of the elements in the Trace Colors range become toxic above the concentrations found in natural seawater. Don't dose on a routine schedule without testing.
Suitable for, and not suitable for
Suitable for larger reef systems or multi-tank setups running a full coral coloration program with ICP or hobbyist-grade iron testing in place. Not suitable for hobbyists without a way to test iron levels, small single tanks better served by the 500 mL bottle, or fish-only tanks with no photosynthetic coral to benefit from it.
Goes well with
- Red Sea Trace Colors D — dosed 1:1 alongside this product as a matched pair, also available in 5 L.
- Red Sea Trace Colors A and B — the other two elements groups in the four-part coloration range.
- An iron or ICP test kit — needed to dose this range safely.
Warranty and delivery
Covered by Red Sea's standard product guarantee in addition to your rights under Australian Consumer Law. Ships as a standard parcel; no cold-chain requirement.
Common questions
Do I need to test before dosing this?
Yes — Red Sea doesn't publish a universal daily dose for Trace Colors C. Test iron first and dose to your measured deficit.
Why buy the 5 L size over 500 mL?
Lower cost per ml, and fewer bottle changes if you're dosing a large system, multiple tanks, or via an auto-doser.
Do I have to dose this with Trace Colors D?
Red Sea designs C and D to be dosed together at a 1:1 ratio — C supplies iron and seven complementary metals, D supplies 18 further bioactive trace elements.
Is this a substitute for Reef Foundation calcium/alkalinity/magnesium dosing?
No — Trace Colors is a coloration supplement layered on top of core reef chemistry maintenance, not a replacement for it.
