Questions - Need some input

I'm building my sump and wanted some ideas from y'all! Its a 20 gallon high. Will have three compartments. Fuge will be the smallest because of availibility of space. I want the return bigger so my heater can fit in the space. The tape in bottom of tank shows where I was thinking of putting baffles. What ya think? I will have 2 returns whereas the skimmer section will get 3/4 of water from return and the fuge will get 1/2 water. Heres pic:

...

Hey y'all,

Was thinking of getting a reactor and some NP Biopellets. I have a few questions:

For the people who use or used NP Biopellets, what do you think of it? Pros and cons?

Secondly, I've heard if you run biopellets and do 2 part dosing you can stop one of the 2 parts. Is that true? If yes why? Or do I still do 2 part dosing and biopellets?

Thanks,

-HAT-