One of the most common questions that novice aquarium owners ask is how often they should clean their tank. The answer comes in two forms depending on how you define cleaning. Even once you’ve read this article and discovered how often you’ll need to give your tank a clean, sometimes, on the odd occasion, you’ll forget. Ultimately, it’s important that you don’t make this a common occurrence, and if you clean your tank as frequently as we suggest, you’ll have a stunningly clean tank all year round. Here’s what we’d recommend.