Do you clean the back wall of your aquarium for a clean look? or do you just let it get grown over by whatever?
For those who do clean it, considering that it is most likely difficult to get to (against a wall, or blocked by rock/coral/etc) how do you do it?
For those who do clean it, considering that it is most likely difficult to get to (against a wall, or blocked by rock/coral/etc) how do you do it?