So the pellets arrived December 23, here's a gratuitous picture of them in the bag:
I think they look like white lentils.
For a 115g tank, I am running 1/2 litre zeolites, and 1/2 litre of pellets. Both of these are half the recommended dosage for this approximate volume.
Now, the results:
I put the pellets and zeolites reactor online on December 24, after a 25% water change and replacement of carbon.
I am measuring nitrate with a Pinpoint NO3 monitor and I recalibrate the probe prior to each use, currently on the high range setting (10 to 100ppm).
Day 0 (following the water change): NO3 = 17ppm
Today is day 4, and I took another nitrate test.
Day 4: NO3 = 14ppm
So, 4 days in and already appears to be a slight reduction of nitrate.
I will continue to post back results every few days.