I just setup LED lights in my new 135. They are AMAZING. Here are photos of the setup. I bought a total of 5 LED light strips (4 lights each; two strips have 2-blue 2-white, the rest are all white) + 2 lunar lights in white.
This is what they looked like.
1) since the LEDs are so small and light; we used velcro - first step was placing velcro on the LED lights
2) placed the "cro" part of the "velcro" onto the canopy
3) placed the lights onto the canopy; used zip ties to keep the wires neat and clean
4) installed
I'll post more photos once all the air-bubbles from the new tank setup disappear. I hope I can capture how awesome the lighting is!
a few pointers: make sure there is plenty of slack in the wires to allow for the canopy to be raised. use zip ties to keep the wires all together