My 200 is mostly LPS with Frogspawn, candy cane, and GSP. I have had good luck with 12K Reeflux. Another good lamp is radium 20K. I do run 1 VHO Actinic with the 3 - 250 watt MH lamps. Since you have electronic ballast when you decide what you want, make sure they are pulse start lamps like the Reeflux or Radium.