Many of us like arrows that are easy to see and follow, especially so for hunting arrows. Clear fluorescent nocks really help with visibility, and here is a little trick to brighten them up even more: Apply some white paint on the nock tapers before you glue the nocks onto your arrows. The white paint reflects more ambient light through the plastic and makes the nocks even brighter, especially in low light.
The paint can be applied to the nock taper before or after the finish coats, and I’ve used both water base enamel and auto touch up paint with good results. Just dip or brush it on, let it dry and continue with your arrows as usual. Give it a try. I think you’ll like it.