Here’s the scenario: You wake up one morning, your fish tank just doesn’t look so great. You’re tired of the filter(s) on it anyway and want to try something different. So you start looking at new filters and filter media. You pull up your favorite fish group on Facebook (FB), post a photo of your tank and filter, and start asking questions. Next thing you know, you’ve received 40 replies telling you to buy this and use that…or worse, don’t use this or that. Then all hell breaks loose because someone notices you’re keeping a hap with an mbuna or, heaven forbid, South American and African cichlids together. World War III starts on FB over a simple question about filters and media.