Hi,
Red or pink lights will accentuate the reds/pinks in plants. Grolux or Interpet Tri-Plus are pink bulbs. Generic bulbs which have a low Kelvin rating (4000K or below) should emit near red wavelengths, however the K ratings of bulbs have lost their fidelity. If you use too many of these bulbs though the tank tends to look dim and eerie.
Cheers,