Seachem Reef Trace 250 mL – Reef Aquarium Trace Element Supplement

Seachem Reef Trace 250 mL is a concentrated trace-element supplement formulated for corals and other invertebrates in marine reef aquariums. It helps replenish minor elements that may gradually become depleted through biological use, oxidation, precipitation, filtration, and regular aquarium maintenance.

Reef Trace provides a blend of trace elements selected for reef systems and contains no added nitrate or phosphate. It may be used alone or alongside Seachem Reef Plus as part of a complete reef supplementation routine.

Key Features

• Reef-Specific Trace Supplement: Formulated for the nutritional requirements of corals and other reef invertebrates
• Replenishes Trace Elements: Restores minor elements that may become depleted in established reef aquariums
• Supports Reef Nutrition: Helps maintain trace-element availability for normal biological processes
• Nitrate & Phosphate Free: Adds trace elements without intentionally increasing nitrate or phosphate
• Compatible with Reef Plus: May be used with Seachem Reef Plus on alternating dosing days
• Convenient 250 mL Bottle: Suitable for nano, medium, and regularly maintained home reef aquariums

Product Information

• Brand: Seachem
• Product: Reef Trace
• Size: 250 mL
• Product Type: Reef aquarium trace-element supplement
• Aquarium Type: Marine and reef aquariums
• Primary Use: Replenishing trace elements for corals and other reef invertebrates
• Standard Dosage: 5 mL per 20 gallons twice weekly
• Nitrate & Phosphate: No added nitrate or phosphate

Listed Trace Elements

• Boron
• Cobalt
• Copper in trace quantity
• Manganese
• Molybdenum
• Zinc
• Rubidium
• Nickel
• Vanadium

Best Used For

• SPS coral aquariums
• LPS coral aquariums
• Soft-coral aquariums
• Mixed reef systems
• Reef aquariums with growing coral colonies
• Established marine aquariums
• Routine trace-element supplementation
• Use alongside calcium, alkalinity, and magnesium maintenance
• Use with Seachem Reef Plus on alternate days

How to Use

Use one capful, or 5 mL, of Seachem Reef Trace for every 20 US gallons of aquarium water twice per week.

Calculate dosage using the aquarium’s approximate actual water volume. Live rock, substrate, decorations, and equipment reduce the amount of water inside the aquarium compared with its listed capacity.

Add Reef Trace to an area with good water movement. Avoid pouring concentrated supplements directly onto corals or other aquarium livestock.

Approximate Dosage Guide

• 10-Gallon Aquarium: Approximately 2.5 mL twice weekly
• 20-Gallon Aquarium: 5 mL twice weekly
• 40-Gallon Aquarium: 10 mL twice weekly
• 55-Gallon Aquarium: Approximately 13.75 mL twice weekly
• 75-Gallon Aquarium: Approximately 18.75 mL twice weekly
• 100-Gallon Aquarium: 25 mL twice weekly

These amounts are proportional calculations based on Seachem’s standard dosage. Always follow the current directions printed on the bottle.

Using Reef Trace with Reef Plus

Seachem Reef Trace may be used alone or with Seachem Reef Plus. Reef Trace supplies reef-specific trace elements, while Reef Plus provides vitamins, amino acids, fatty acids, and additional nutritional components.

When using both products, Seachem recommends dosing Reef Trace and Reef Plus on alternate days rather than adding them together on the same day.

Using Reef Trace with Major-Element Supplements

Reef Trace complements, but does not replace, calcium, alkalinity, and magnesium supplementation. Reef-building corals require stable major elements, salinity, temperature, nutrients, lighting, and water flow in addition to trace elements.

Test calcium, alkalinity, magnesium, nitrate, phosphate, salinity, and other important reef parameters regularly. Reef Trace should not be used to correct low calcium, low alkalinity, low magnesium, or unstable pH.

Avoid directly mixing concentrated supplements together unless the manufacturer specifically permits it. Dose products separately into an area of good water circulation.

Dosing Tips

• Measure dosage according to actual aquarium water volume
• Use a dosing syringe for amounts smaller than one capful
• Add the supplement to an area with good water movement
• Maintain a consistent supplementation schedule
• Do not intentionally overdose trace elements
• Dose Reef Trace and Reef Plus on alternate days
• Continue testing major reef-aquarium parameters
• Keep a log of dosing amounts and coral response
• Continue regular water changes and aquarium maintenance

Important Reef Aquarium Note

Trace elements are required only in small quantities. Adding more than the recommended amount does not necessarily improve coral growth or coloration and may allow certain elements to accumulate above appropriate levels.

Pale coloration, slow growth, reduced polyp extension, or tissue loss can have many causes and do not independently confirm a trace-element deficiency. Review salinity, temperature, alkalinity, calcium, magnesium, nitrate, phosphate, lighting, water flow, pests, and aquarium stability before changing the dosing schedule.

Reef Trace does not replace regular water changes, nutrient testing, filtration, protein-skimmer maintenance, or complete reef aquarium husbandry.

Frequently Asked Questions

What is Seachem Reef Trace used for?
Reef Trace replenishes trace elements formulated for corals and other invertebrates in marine reef aquariums.

How much Reef Trace should I use?
Use 5 mL for every 20 US gallons twice per week.

Does Reef Trace contain nitrate or phosphate?
No. Seachem states that Reef Trace is nitrate and phosphate free.

Which trace elements are included?
The listed formula contains boron, cobalt, copper, manganese, molybdenum, zinc, rubidium, nickel, and vanadium in small quantities.

Does Reef Trace contain iodine or iron?
Iodine and iron are not included in Seachem’s current published ingredient list for Reef Trace.

Can Reef Trace be used in SPS aquariums?
Yes. It may be used in SPS, LPS, soft-coral, and mixed reef systems when dosed according to the label.

Can Reef Trace replace water changes?
No. It replenishes selected trace elements but does not remove waste, restore every component of seawater, or replace regular water changes.

Can Reef Trace replace calcium and alkalinity supplements?
No. It does not replace calcium, alkalinity, magnesium, or other major-element supplements.

Can Reef Trace be used with Reef Plus?
Yes. Seachem states that the products may be used together and recommends dosing them on alternate days.

Is Reef Trace the same as Marine Trace?
No. Reef Trace contains mineral levels selected for corals and reef invertebrates, while Marine Trace is formulated around the trace-element needs of marine fish.

Can too much Reef Trace be harmful?
Trace elements are required in very small quantities and may accumulate when overdosed. Follow the recommended schedule and avoid unnecessary additional dosing.

Should I test trace-element levels?
Routine individual trace-element testing can be difficult, but advanced aquarists may use laboratory testing when adjusting supplementation in heavily stocked reef systems. Standard dosing should still be conservative and consistent.

Available at Tropical Treasures Wyo

Seachem Reef Trace 250 mL replenishes reef-specific trace elements for corals and other marine invertebrates. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop Seachem reef supplements, calcium and alkalinity products, marine test kits, dosing supplies, reef foods, and aquarium care essentials.

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