Is there a best Bio-pellet?

[Janeallisonn]

So I've got my tank up and running ... 29 gal biocube and just filled it with plenty of pretty SPS frags. Skimmer is working well, Mg, Alk and Ca are testing where they should be, but I'm still not getting the color that I'd like out of my SPS.

I'd like to start running a small amount of bio pellets in the first chamber of the back of my tank, directly below the skimmer (Aquatic Life 115) intake and despite some extensive reading there still doesn't seem to be a clear 'winner' when it comes to which pellet it best.

Since I'm working with limited space and will likely only be running about 100-150ml of pellets, the NitraGuard Cubes sound like a fantastic idea if I can set them up with an air stone rather than DIYing a small reactor.

But long story short I'm looking for some opinions.