In episode 5 of the Polo Podcast, Andrew and Mike Paletta are joined by special guest Bob Stark. Bob is a well-known chemical engineer with a degree in marine biology and owner of ESV aquarium products. They explore hot topics, including whether water changes are necessary, trace elements, and managing organics in your aquarium. Get an exclusive sneak peek into Bob's groundbreaking new product—a cultured probiotic bioactive coral food poised to revolutionize coral feeding practices. Don't miss out on this insightful discussion!