Stability has been proven by many members on this board but of course they may be some bad batches. I think if you never have ammonia at 0 your reading your test kit wrong or your using prime which gives a false positive reading of ammonia.I don't think Stability speeds up the cycle. I think it just renders Ammonia non-toxic to fish. Helps keep your fish from dying while the BB colony catches up. Personally, if it was me, I'd call it done. You get close to 0 ammonia, and 0 Nitrite, and you're measuring some Nitrates. That means you have bacteria turning Nitrite to Nitrate, since you were getting Nitrite readings previously. Just add fish slowly, make sure you use Prime when do a Water Change if you have chlorine or chloramine in your tap water. I have 2 tanks cycled for close to a year now, they never read exactly 0 Ammonia, they always read 0 Nitrite, and they always read at least 5-10 ppm Nitrate--and as high as 60-80 ppm Nitrate sometimes. I think you're good.
They will not! I wouldnt risk any more or less expensive fish in a uncycled tank.Put some fish in it. They'll be fine.
Edit adding on to this
how bigs the arowana? just asking because a larger fish has a much larger bio load and you may still go through a mini cycle.
To TheBroc just feed light for a week and you should be fine. Just test the water every other day and do a water change if theres any ammonia.


