[Seriak]

Okay,

Let me know if this sounds right.

SPS Analysis

1) High nitrates led to a small algae bloom.
2) High Alk combined with the introduction of Bio Pellets led to burnt tips on my SPS.
3) The algae then formed on the dead tips and slowly stressed the SPS; hence some RTN and some STN

LPS Analysis

1) Introduced Bio Pellet Reactor which increase CO2
2) Winter has an affect of increasing CO2 as our houses are all sealed up during this time
3) These both lead to a decrease in my tanks pH
4) LPS typically are stressed from decreases in pH which resulted in a lot of them deciding to drop their heads.

Does this pretty much sum up what happened to me?
Does any of my logic not flow properly? Also, would the heads dropping off also lead to my increased nitrates if they were not removed from the tank?