- Sku: 736
- Vendor: Seachem
Seachem Reef Trace
Seachem Reef Trace supplies the broad range of trace elements that a reef aquarium needs but slowly loses through uptake, oxidation, and precipitation. Corals, clams, and other invertebrates rely on these elements for healthy metabolism, growth, and vivid pigment, and they are not fully replaced by salt mix and water changes alone. Reef Trace replenishes them in balanced, reef-appropriate ratios and is free of nitrate and phosphate. Round out your dosing routine with the rest of our reef care lineup.
Why Trace Elements Matter
- Replaces trace elements consumed by corals and invertebrates
- Supports metabolism, growth, and bright coral coloration
- Broad blend including boron, manganese, zinc, molybdenum, and more
- Free of nitrate and phosphate, so it will not feed nuisance algae
- Formulated to complement, not replace, calcium and alkalinity dosing
How to Dose
Use 1 capful (5 mL) for every 80 L (20 US gallons) twice a week. If you also dose Reef Plus, alternate the two so you add Reef Trace on one day and Reef Plus on the next.
| Step | Guideline |
|---|---|
| Routine dose | 1 capful (5 mL) per 20 US gallons, twice weekly |
| With Reef Plus | Dose on alternate days |
Choose Your Size
| Size | Best For |
|---|---|
| 100 mL | Nano and small reef tanks, or trying it out |
| 250 mL | Most home reef aquariums |
| 500 mL | Larger reefs that dose more often |
| 2 L | Big display tanks and heavy SPS systems |
Specifications
| Type | Reef trace element supplement |
| Contains | Boron, cobalt, copper, manganese, molybdenum, zinc, rubidium, nickel, vanadium |
| Free of | Nitrate and phosphate |
| Routine dose | 5 mL per 20 US gallons, twice weekly |
| Water type | Saltwater and reef aquariums |
| Available sizes | 100 mL, 250 mL, 500 mL, 2 L |
Recommended Pairings
- Seachem Reef Plus: reef vitamins and amino acids to feed corals alongside trace elements
- Seachem Reef Complete: bioavailable calcium for coral and coralline growth
- Seachem Reef Strontium: dedicated strontium for skeletal growth
- Seachem Reef Fusion 1 & 2: a two-part calcium and alkalinity foundation
- Saltwater collection: browse the rest of our reef care lineup
Frequently Asked Questions
How is Reef Trace different from Reef Plus?
Reef Trace supplies trace elements, while Reef Plus adds reef vitamins and nutrition. Many reefers run both and alternate the days they dose.
Will it cause an algae outbreak?
No. Reef Trace is free of nitrate and phosphate, so it will not add the nutrients that fuel nuisance algae.
Do I still need to dose calcium and alkalinity?
Yes. Trace elements are a supplement to, not a replacement for, your main calcium and alkalinity dosing.
Is it needed in a fish-only tank?
Reef Trace is intended for reef systems with corals and invertebrates. A fish-only saltwater tank does not require it.
Have a question?
Seachem Reef Trace
