I've had a hard time selecting lighting for a 47G tall aquarium. Measures 20x18x31. after a week searching, reading, etc... I decided n a fixture by Catalina Aquarium. I always wind up going back to those guys. I ordered a 20PC, 3 bulbs, 3 cords, 3 switches. I wanted the 3 cords & switches. Since they offered my choice of bulbs, I opted for 1 each 10000K, 6500K and Plant Grow, each buld is 36W. All this, including the legs, vented top ( I prefer no fans) for $100.00. Any opinions/comments?