Lights
 
This is the light setup in my office aquarium. As you can see, what I've done is to saw a 4 inch drain pipe into two halves. Then, drill 4 holes for the wires to tie the light. After that, tape a piece of aluminium foil (commonly used when baking) as reflector. Tie your lights to the drain pipe. I use the metal wires (insulated) which are commonly used to tie your electrical appliances' wires. In my office tank, I used an Alpha brand PL which is cheaper but not as lasting (my opinion only) as the more expensive ones.
Here's how the completed light setup looks like in my office tank. In this case, I have used a leftover drain pipe of my house tank setup and thus it is not long enough to cover the entire length of the 1.5 foot little aquarium. So, I've decided to keep it shaped peculiarly like this. The advantage is that I can change the position throughout the day i.e. early morning on the right (as seen in photo), middle of the tank around noon and on the left at the end of the day. Simulates the sun's movement effectively.
 

This office tank consists of riccia, erect moss and red lotus. The inhabitants are guppies (2 generations) and a Yamato shrimp. Unfortunately, since last week, it is seeing an attack of BGA (Blue Green Algae) due to little water flow and I'm still pondering the best and most effective method of getting it cleared. I had managed to overcome BGA once in my moss tank at home by having a 3 day blackout followed by daily changed of 50% of water. As BGA is basically cyanobacteria, the chorine in pipe water kills it. However, since this is an office tank, it is rather difficult to change water so often. As thus, I am now considering antibiotics but I am at the same time, worried about the algae becoming resistant. Any ideas?
Blue Green Algae Outbreak on riccia