H2Ocean Classic Formula Marine Salt

Experience the benefits of a professional-grade aquarium salt formulated through a solar evaporative process that yields a completely natural base salt, ensuring all main and trace elements are perfectly balanced as nature intended.

This premium salt blend is specially enhanced for aquarium use by elevating essential elements such as calcium and magnesium—key nutrients that corals and coralline algae rely on for healthy growth. Free from nitrate and phosphate, it supports a pristine marine environment and reduces nuisance algae growth.

Developed after extensive testing and evaluation, this salt dissolves quickly and easily, creating an optimal chemistry to maintain a vibrant and healthy reef ecosystem. Its formulation boosts calcium and magnesium levels to replenish those consumed by coral growth, while slightly lowering chloride levels to facilitate post-additions of calcium and magnesium chloride with minimal impact on overall chloride balance.

When mixed to a specific gravity of 1.025 @ 25°C, it achieves a salinity of 35.5 ppt, ideal for marine aquariums. Recommended for use with Reverse Osmosis (RO) or soft water containing calcium levels below 30 mg/l, this salt ensures balanced calcium concentrations (enhanced to 440 mg/l) without the risk of precipitation caused by mixing with hard tap water. RO water also removes unwanted ions like phosphate and nitrate, contributing to a cleaner aquarium environment.

For best results, add 1 kg of salt to 24.2 liters of water (approximately 1 lb to 2.9 US gallons), mixing well until fully dissolved and the solution is clear. It is advisable to aerate the mixture for 24 hours and bring it to the correct temperature before use. Always check the specific gravity before adding to your aquarium, adjusting salt or water as needed to achieve the correct reading. Keep in mind that specific gravity varies with temperature.

For accurate and consistent measurements, the use of a portable refractometer is highly recommended. This expertly balanced marine salt is ideal for maintaining the health and vitality of your reef aquarium, supporting robust coral growth and a natural aquatic harmony.