a 2x36 ballast probably won't run 2 65 watt bulbs and definately not 2 96 watters. Your current ballast might run 1 65 watt bulb.
Your ballast need to match your bulb choice.
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,