Bio-pellets I quit you!

[Dyspnea]

After 6 months of running bio pellets I will stop using them, I probably would have had better luck using marbles in my reactor. Over the last six months my tank has slowly deteriorated, algea out breaks are the man concern, but also the stunned/lack of coral growth. some frags appear very healthy, but on the flip side healthy frags die for no apparent reason, even after coming from FTOTM.

I suspected the bio-pellets were not working rather early, I've tried everything I can think of too turn things around.*

-30% water changes per month
-I've dosed zeobak, in the event I had "monoculture"
-I started only with 250mls of pellets, two weeks later I had a total of 500mls, now at the six month point I have 1 litre, but it makes little sense to buy more to replace them, for something that doesn't work.
-I've had the slowest tumble possible before my reactor will clump.
-More feedings and decreased feedings

I fell I'm at the point I may need to tear down the tank and rebuild. Hopefully not I plan to bring my refuge back online (I've alway had good results with a fuge) and possibly run GFO.

I bought into the bio pellet concept, and thought it would be better then Zeovit, based on my life style (no daily dosing,shaking). Also what sold me was the positive result the majority of user were reporting. *And when I started I was excited and positive about what was too come.

But I'm frustrated and tired and will go back to what I know.

Sorry for the long post but I needed to rant/vent