You might be able to grow some plants with 1 wpg
. The actinics do count for a little (I've heard between 10 and 20% of what a "regular" bulb with the same wattage would do). I have 50:50 bulbs on my 55g and I feel like I've got a little more wattage (based on plant growth) on there than I should have if I don't count the actinics.
You could certainly use the shop light. And if the 1 wpg
isn't quite enough you could always switch out one of the actinics which would bump you up to 1.5 wpg
or so, and you still wouldn't need CO2
As for plants, Crypts, Anubias, Java fern and moss and maybe Anacharis should do fine for you.