I rented a PAR meter from BRS and did some measurements today. It looks like my pair of Radion xr30W lights are enough for my 120 gallon, but the A80 is only generating 60 par at the bottom of my 10 gal tank at maximum intensity. That is disappointing and does not sound like it is going to encourage much growth. What does the hive mind at R2R suggest to improve my lighting without breaking the bank? Would a second A80 ($129) on a second gooseneck ($25) get me a better result, or is it just more low-intensity light that will not increase PAR? Or should I go up to the A160WE ($229) and matching gooseneck ($35). I use an APEX and I see that light comes ready for it. Or I guess I could also look at AI Prime ($209) and gooseneck ($26). I have an old AI Hydra twenty six, but I could not find a mounting option I liked on the Waterbox 10g. The AIR gooseneck was super tall. If anyone has suggestions there, I'll take those too.