[pyromaniac398]

Usually in the all-in-one tanks people do a few things. The first thing people do it is throw out the bioballs in the second chamber. The bioballs overtime will just become nitrate factories and you don't want that. You can do one of two things in the back. You can refill it with just Live Rock rubble or you can make it into a mini fuge. If you go the fuge route all you need to do is fill it half with cheato and half with live rock then stick a light over the top of the second compartment. Most people are usually disappointed with the return pump, and upgrade that as well. Most upgrade to a Maxi jet 900. Those are just a few of things that people have done to the back of their all-in-one tank. Trust me if you google nano mods or AP12 mods you will get tons of ideas