Well, I am finally done with my upgraded 2.5 gallon. I decided to add a fuge and I wanted to keep the pico theme, so I just went small with everything... I will explain more with the pictures.
Here is the stand I made for the display tank and the fuge:
Here is the open cabinet doors in the stand open where the sump/fuge stays:
Here you can see the fuge where I have about 2 pounds of live sand, 3 pounds of live
Fiji rock, and some Chaetomorpha
macro algae that is growing wild

You can also see some of the baffles. I used Plexiglas from HD and GE Silicon II WITHOUT the mildew resistant stuff. I have 1 13w 6400K running 24/7. Return pump is a Mag Drive 1.5:
Here is the right hand side of the fuge. I wanted to maximize space for the macro and LR so I arranged the overflow baffles in a triangular pattern so they only occupy the back corner:
Here is the auto top-off system I made along with my electrical mess:
Here is the overflow system. The box in the back is a breeder box with a Plexiglas divider so I don't loose siphon when power goes out (been tested and it works

)
Here is the inside overflow box. It is a little corner filter that I modified, its looks like it belongs, nice and rounded:
And finally I got a 100mm macro lens for my Canon 10D for my birthday the other day and I was just testing it out, so here is my Yuma Ricordia Garden:
Let me know what you guys think!