Supplement containing a highly nutritious concentrated feed for all types of corals, especially SPS corals. AF Energy is a unique composition of the most valuable, natural extracts. It contains unsaturated Omega-3 and Omega-6 fatty acids, vitamins and amino acids. AF Energy contains a natural extract from a specially selected zooplankton. By limiting the growth of zooxanthellae, it increases the bright, pastel coloration of SPS corals. AF Energy has been enriched with a copper sulfate, which is needed for proper development and intense coloration of corals. The content of copper sulfate in this product is almost undetectable and completely safe for all marine organisms. Due to the acidic reaction of AF Energy, we recommend using AF Build the same day in order to stabilize pH levels.