Nano Cube tank help PLEASE!!!
I'm currently house-sitting for a friend of mine who has a (I'm guessing on the size here...) a 30L Nano Cube Saltwater tank. Today when I got home from work, the water is completely still, and I'm thinking the filter is clogged or something?
If anyone has some advice, please let me know. I'm absolutely clueless when it comes to these tanks.