I'd also like to know if the lighitng that it came from, before you got it, was less powerful than yours or more.
It could have been ready for a split before you purchased it, but if there was something wrong with your water quality then I would assume that you would be complaining because they are shrinking or doing something else like hiding from the light or other such thing.
As long as it split and looks healthy, things should be fine.
No real gems of wisdom here, but congratulations on the split.
Pics, pics we wan't pics :cheer:
Thomas