Bio Pellet Reactor Recirculating or Not ? ?

Converted my old TLF phosban 150 media reactor to run Bio-Pellets last week.
I have a I-Tech skimmer 120gallon mixed reef. Nitrates go from 15ppm to 30ppm before next water change so trying to lower them.
I loaded reactor with about 5oz or 3/4th a cup or about 150ml(recommended amount is 12oz).
My question is after nitrates begin to drop can I just remove some pellets to control bacteria so nitrates arent stripped completely or do I need to buy a Recirculating reactor ?

 

I have seen strong indications the amount of pellets and the amount of flow can control the amount of removal at least a bit. I've never seen a tank get too clean with biopellets personally.

 

I would start with a lower amount and slowly add pellets as time goes on, it can take up to 4 weeks for pellets to fully seed. When they kick in you'll know right away.

 

+1,the amount of available food source(nitrates+phosphates)should control the bacteria population,just make sure your skimmer is working well and feed your corals when nutrient levels are low.