FYI on cycling your tank:
DO NOT use AMMO-LOCK or any other "ammonia neutralizer" when cycling your tank. It actually does more harm than good. It binds ammonia in a non-toxic form, so your fish won't die, but the molecule is not digestible by nitrifying bacteria, so they STARVE. Ultimately, your tank will never cycle or you'll have ammonia problems off and on for the life of the tank.
Not only that but the natural processes that occur in a fish tank can lower pH over time and at some point, the acidity will break the bonds and release all of that ammonia into your tank at ONCE - instantaneous fish kill.
One thing I strongly recommend is a reagent-based ammonia test. It can test for both bound and un-bound ammonia. This is important because while only the former can kill your fish, the presence of EITHER suggests your tank is not fully-cycled.
I also strongly recommend using only Seachem Prime as a dechlorinator/ammonia detoxifier. It detoxifies ammonia in a way that won't interrupt the cycling process.
Don't live for pleasure, make life your treasure...
\m/ Ronnie James Dio, 1942-2010 \m/