LR and LS Cycle question from a newbie...

Hi all,

I have a 29gal tank fishless cycling with LR and LS for a week now.
The 20lbs of LR I got from the dealer are from an old tank thus
Coraline algae (the purple algae) already established therefore I
don't know if the cycle timeline on my tank will remain the same, 4
Weeks or more is what my LFS suggested.

Three days ago my reading from the SeaChem reef basic kit is:
PH = 8.2-8.4
Ammonia = 0.3
Nitrite = 0.1-0.5
Nitrate = 1-2

Yesterday
PH = 8.2-8.4
Ammonia = 0.0
Nitrite = 0.0-0.1
Nitrate = 0.2-1

Today
PH = 8.2-8.4
Ammonia = 0.0
Nitrite = 0.0
Nitrate = 0.2-1

The question is "Is my tank cycled?" or do I expect to have some
ammonia spike in the next few days.

Thanks in advance,
ND