Brightwell Aquatics Rēplenish Marine Aquarium Trace Element Supplement, 2 L, 29 Elements

Brightwell Aquatics Rēplenish is a 2 L marine aquarium supplement that replenishes trace and minor elements, with 29 elements in the ratios found in natural seawater.

• 29 trace and minor elements in natural-seawater ratios — helps restore a range of elements used by marine life.
• Replaces elements lost through protein skimming and chemical filtration — supports routine care for filtered marine aquariums.
• Made for fish, corals, and other invertebrates — supports their health, growth, and coloration.
• Liquid added as drops to tank water — a straightforward way to use the supplement.
• Made in the USA using purified water and ultra-high-purity materials — for aquarium use.

Protein skimming and chemical filtration, including activated carbon, can remove trace and minor elements from marine aquarium water. Rēplenish is designed to replace those elements as part of care for reef tanks, fish-only aquariums, and systems with invertebrates. Its formula is based on natural seawater ratios, while the included dosing directions guide how to add it to the tank.

What does Rēplenish add to a marine aquarium?

Rēplenish provides 29 trace and minor elements in the ratios found in natural seawater. These elements play roles in enzymatic reactions, pigment production, and the overall health of marine organisms. The formula is intended to support fish, corals, and other invertebrates, including the growth and coloration of aquarium life.

• Designed for marine aquariums, including reef and fish-only systems.
• Addresses element loss associated with protein skimming and chemical filtration.

Which aquarium animals is it made for?

Rēplenish is made for marine systems containing fish, corals, or other invertebrates. Its intended use includes reef aquariums, fish-only aquariums, and aquariums with invertebrates, so it can serve tanks with different types of marine life.

• Supports the health of fish and invertebrates in marine systems.
• Helps maintain coloration and promotes healthy growth.

How do you add Rēplenish to the tank?

Add drops of Rēplenish to the aquarium water and follow the product’s dosing directions. The 2 L size provides the supplement in a liquid format for this drop-based application; use the directions to determine the appropriate dose for your aquarium.

• Use the supplied dosing directions to guide application.
• Developed by marine scientists and based on years of empirical research.

Rēplenish suits aquarium keepers maintaining reef tanks, fish-only marine aquariums, or systems with invertebrates who want to replenish trace and minor elements removed during filtration. Its 29-element seawater-ratio formula and drop-based use make it a targeted addition to marine aquarium care.

Read our guide: A beginner’s aquarium set-up checklist: from bowl to tank