well, unless you plan on keeping the rock away from the back glass and the back glass as clean as the front glass, then all reflection is going to go out the window so to speak.....Ive always used tape on vinyl (except with my new tank which has vinyl that was applied directly to the glass by the tank manufacturer) simply because I dont think that the time and effort of painting the glass is worth it for me...Im too lazy to keep the back glass clean
__________________
260g mixed reef, 105g sump, water blaster 7000 return, Bubble King SM 300 skimmer, Aqua Controller Jr, 4 radions, 3 Tunze 6055s,1 tunze 6065, 2 Vortech MP40s, Vortech MP20, Tunze ATO, GHL SA2 doser, 2 TLF reactors (1 carbon, 1 rowa).
http://www.canreef.com/vbulletin/showthread.php?t=50034 . Tank Video here
http://www.vimeo.com/2304609 and here
http://www.vimeo.com/16591694