Nano upgrades!?!

[codyjp]

what upgrades have you done to your nano? Lights is probably the most popular but what about increasing flow, filter changes/mods, etc... just looking for some ideas.
Also, has anybody used one of these wave maker things?
I am curently thinking of upgrading my pumps to increase my flow. I am trying to decide on adding another small pump and some more plumbing (small 1/4" tubing to move water to behind the liverock etc) or just replacing the pump that I have for something with more output. What do you think?

 

[peef]

Depending on what size your nano is...mine is a 24g. I have replaced the stock pump with a Maxi-jet 1200 and put a hydor flow rotating power head on the outlet so it makes random current and wave action. I put a Power Sweep Auto-Rotating Powerhead into the tank to add flow and make it even more random. I took out ALL the filter media and replaced with LR rubble. I do have a Nitrate sponge and phosgard in first chamber but I still do 25% weekly WC as this is no substitute. I need to hide the intank PH a little better but I REALLY don't want to tear down aquastructure for a long time to let tank mature properly.