OceanMagik is made fresh each week and shipped to you directly for optimal quality. Upon opening, the product may have a strong, sulfuric smell due to the sealed lid. Allow it to air out for a little while, and the scent should return to its natural earthy, slightly sulfurous aroma. This is normal for live phytoplankton. OceanMagik color can vary from a light green to a dark green, and can have a bit of settling in the bottle occur. Agitate gently to redistribute settled debris. OceanMagik Live Phytoplankton Blend – Freshly Made weekly for Your Aquarium's Health Imagine having crystal-clear water, reduced nitrate and phosphate levels, and thriving copepod populations. OceanMagik is a hand-selected blend of four LIVE Phytoplankton strains (Nano, Iso, Tet, and Thal), perfect for nourishing copepods, corals, clams, and other filter-feeding invertebrates. It's the same blend we use to feed and culture our Poseidon's Feast LIVE Copepods at our facility, ensuring top-notch quality and nutrition. As a LIVE product, OceanMagik actively helps reduce algae by consuming nitrates and phosphates in your aquarium, contributing to clearer water and a more balanced ecosystem. Continued use will also help stabilize pH levels, promoting a healthier environment for your tank inhabitants. Freshness Guarantee: OceanMagik is made fresh each week and shipped to you directly for optimal quality. Upon opening, the product may have a strong, sulfuric smell due to the sealed lid. Allow it to air out for a little while, and the scent should return to its natural earthy, slightly sulfurous aroma. This is normal for live phytoplankton. Shelf Life & Usage: While OceanMagik has an expiration date of 4 weeks post-delivery, it can be used beyond this period as long as it does not develop a foul "rotten broccoli" smell. Always check for this before use. Please note: OceanMagik is a specialized saltwater aquarium food product and is not intended for human consumption.