Is it possible my tank has cycled in 3 weeks ?

[dmurphy]

after only 3 weeks my levels have seemed to have completed the cycle. Is this possible ? Everything has seemed to happen as planned just a whole lot quicker than 30 days which is what I figured for the cycle ( see measurements below ). What do you think ? .. safe to add livestock ?
Any thoughts ?
My setup is as follows:
Tank = 90 Gallon 48x18x24
2x175w Metal Halides + 2x40w Actinic NO
2 Rio 1100s
1 Emperor 280 Filter
1 Red Sea Prizm Protein Skimmer
90 Lbs. of Kaleini (tonga) Live Rock
45 Lbs. of Fiji Live sand
40 Lbs. of Nature's Ocean Bio-Active Argonite Live Sand
DateTempSalinitypHAmmoniaNitriteNitrateAlkalinity
9/5/02761.0228.30.50.12.52.8
9/7/02761.02258.12.50.5201.7
9/8/02761.02358.10.51503.2
9/15/02781.02358.300.2153.2
9/23/02761.02358.200102.8

 

[dburr]

I'd say it looks like it's done.
One note: Your salanity is just on the low side but not bad.
Time to go fish'n eh!!

 

[shadow678]

I'd say his salinity is well within acceptable range, but I do agree with the cycle being completed. Congrats and good luck.

 

[mr . salty]

Although it appears that the initial cycle IS done,You should still add livestock very slowly.Your bio system is still very young,and thus UNSTABLE..Adding more than one fish may put the tank into a RECYCLE...

 

[shadow678]

But isn't recycling good?
(Just kidding, btw, I totally agree with Salty's suggestion)

 

[col]

My 35G cycled in 11 days (fishless cycle).
My smaller quarantine tank is now 11 days and nowhere near by the looks of it.

 

[buzz]

My tank never went through a cycle (exception to the rule, I know). But yes, it is definitely possible that you finished your cycle.
But Salty is right...take your time in adding to the tank...only a little at a time.

 

[j21kickster]

nor did my first