Jeff, I started out with a 160 over a 36x12 45g tank and it was perfect. Last May I set up my 90 which is 48X18x24 and ordered 2 Razor 120's with the connector rods and was going to sell the 160, well glad I didn't. Turns out the spread I got left a lot of dark areas on the outer perimeter of the tank. I am now using 2 120's on the front half of the tank and the 160 on the back, all are on the legs that they came with. Last week I decided to upgrade the 160 to the 120 degree lenses and now its perfect. The growth I got from the Razors has been awesome, I have a well stocked tank with sps, zoos and lps. If I knew then what I know now, after the investment I made into all three fixtures I would have gone with AI's or Radion's, more control and better spread. So bottom line I do not think the 160 will be enough once your system gets to be well stocked. If you would like photos let me know. I actually have 4 new 120 lenses that I am not going to use if anyone wants to buy them, I am going to send them back to Coralvue next week.
