This might be a stupid question but I'm new to this so please forgive me. When you do a water change how do you get the new saltwater back into your tank. I think I read somewhere about using a return pump of some sort but not sure. I know you people with big tanks have to use something as cupping it back in isn't going to work. I have a 26 gallon so I don't need something super big to go from my 5 gallon bucket back to the tank. Do they sell a return pump with hosing or something?