Understanding bottled bacteria

[Wildreefs]

Hi all,

so I recently upgraded tanks, from a 50 cube to a 180.

in the new 180, I added dry rock from reef cleaners (100 pounds) never used, bone dry, and bone dry aroganite sand.

I let it run a few days, tested ammonia, nothing . All new water etc.

I then moved about 20 pounds of existing live rock from cube that’s been cycled for about a year.

i then added two bottles of biospira into 180, along with my 12 relatively small fish. Ideally I was only going to move 3-4 fish at a time, but when I was taking some rock out to catch fish, and move that rock to new tank, I stirred up the sand bottom and feared a spike, so I moved all to 180.

fish have been in new display since Friday, seem fine, no ammonia.

Am I in the clear so to speak with ammonia given the two bottles of Bacteria, and some established live rock?

I know the biospira works in qt tanks that don’t run very long, but my fear is long term eventually the biospira will “quit” while the natural bacteria you normall get during a cycle begins to take over. Or should that biospira bacteria stay out and not allow a spike?

 

[Nhltc99]

I would expect that you are in the clear from risking an ammonia spike by this point, but definitely continue to monitor it for a while yet just in case. If you moved all of your live rock, and the only bio-filtration you left behind is the old sand, you likely made up for this loss by cycling the bacteria bottles a few days ahead of time. Not to mention you more than tripled your water volume to better dilute any ammonia that does build up.

 

[Cory]

If your scared it isn't working macroalgae and a good light will reduce ammonia.