I have found that the little 7.00 5M RGB 3528 Led Flexible Light Strip with IR Remote Controller can make the colors on your cichlids POP! The LED strips can plug into one another to make them longer. The remote control allows you to use various color combinations and brightness settings, and the fish look awesome. The light I made was for my 72" 125 gallon tank. The light strips are self adhesive peel and stick, so it can't get much easier than that. All I needed was the following.
2 - LED strips (15.00)
1 - 12 ft plastic rain gutter (4.00)
2 - Rain Gutter End Caps (12.00)
Total was approx 30-35 bucks
I still had enough guttering left over to make two planter boxes for underneath the windows of my storage shed