I would not use the soft/warm white bulbs. They will make your plants grow, but also algae, and the yellow makes a tank look really ugly, although that's personal preference of course.
I just can't believe you can't buy daylight colored screw-ins in Canada. They are not easy to find, but if you search a little, you might get lucky. I remember posts about Panasonic bulbs, and while grossly overpriced, you might get some "Full spectrum Envirolite" bulbs from a "Hydroponics store" or nursery supply.
Finally, just try and see if the warm white bulbs make you and the plants happy... they are cheap enough.
