With proper placement (out of sunlight!) & recommended feeding, your EcoQube should NEVER have green algae (from nitrates) because your filtering plant removes all the nitrates. It is common for naturally occurring brown "dust" in aquariums called diatoms to occur in any fish tank. This magnet lets you remove that in seconds from the OUTSIDE of your EcoQube without ever getting your hands wet
Make the only part of maintenance for your EcoQube EVEN easier!