API Eco Strontium Marine Essential Reef Supplement

Maintain healthy strontium levels in your reef aquarium with API Eco Strontium Marine — an essential reef supplement derived from natural marine plant extracts, providing a unique slow-release formula that replenishes strontium depleted by natural marine aquarium processes.

Strontium plays a critical role in reef ecosystems — incorporated alongside calcium into aragonite, the mineral secreted by reef-building corals, coralline algae, tubeworms, and other invertebrates to form their skeletal structures. Maintaining strontium at the natural seawater concentration of approximately 8 ppm supports vigorous coral growth, strong skeletal formation, and a vibrant, thriving reef aquarium.

Unlike conventional strontium supplements, API Eco Strontium Marine uses a natural, plant-derived source of strontium with a slow-release formula — providing a more gentle, sustained delivery of strontium into the water column. The formula also contains molybdenum and other essential elements to further support reef health and water chemistry balance.

Key Features

• Natural source of strontium: Derived from marine plant extracts — a more natural and sustainable source than synthetic strontium chloride formulas
• Unique slow release formula: Replenishes strontium gradually and consistently — reduces the risk of parameter spikes associated with rapid direct dosing
• Replaces depleted strontium: Restores strontium consumed by natural reef processes including coral growth, coralline algae, and invertebrate skeletal formation
• Contains molybdenum and other essential elements: Provides additional trace element support alongside strontium for overall reef health
• Supports coral and invertebrate growth: Maintains strontium at natural seawater levels to support vigorous coral skeletal development and coralline algae growth
• For a vibrant, healthy reef aquarium: Designed for use in reef aquariums containing hard corals, coralline algae, tubeworms, starfish, and other invertebrates
• API quality: Backed by API's decades of aquarium water chemistry expertise

Suitable for use in reef aquariums containing:
Hard corals, coralline algae, tubeworms, starfish, and other marine invertebrates

Dosing Instructions

Test strontium levels before dosing. Target strontium concentration: approximately 8–10 ppm (natural seawater level). Add as directed on the product label. Regular testing with a reliable strontium test kit is recommended to monitor levels and adjust dosing accordingly.

Product Details

• Brand: API (Aquarium Pharmaceuticals)
• Type: Reef Supplement — Strontium
• Source: Marine plant extracts (natural)
• Formula: Slow release
• Contains: Strontium, Molybdenum, and other essential elements
• Suitable For: Marine reef aquariums — hard corals, coralline algae, tubeworms, starfish, invertebrates