The Red Sea 4-Part Complete Reef Care Dosing System (Small) is specifically designed for reef aquariums up to 40 gallons. This system is a convenient and effective way to maintain balanced water chemistry by replenishing essential elements consumed by corals and other reef inhabitants. It ensures that your reef thrives with vibrant colors and optimal growth. Here's an overview of the four parts included in this small dosing system:

1. Part 1: Calcium, Magnesium, Strontium, and Barium – Essential elements for coral skeleton growth and overall reef health.

2. Part 2: KH/Alkalinity – This part helps maintain the aquarium’s alkalinity, which is crucial for stabilizing pH and ensuring coral health.

3. Part 3: Potassium, Boron, and Halogens (Iodine, Bromine, Fluorine) – These trace elements support coral metabolism and promote vibrant coral coloration.

4. Part 4: Trace Elements (Iron, Manganese, Cobalt, Copper, Zinc, and more) – A blend of 18 bioactive trace elements vital for coral and other reef organisms' overall health and growth.

The system’s dosing is designed to be simple, with all four parts used simultaneously in balanced ratios. It’s ideal for those looking to maintain a reef aquarium with minimal hassle, as the elements are provided in the exact proportions needed to support healthy coral and marine life. This small-sized system typically lasts around three months for aquariums up to 40 gallons, offering both convenience and cost-effectiveness.