The only product of that kind that I have used with any success is SeaChem's "STABILITY", still, I'd do the fishless cycling...
First off, you need to raise the temp to the mid 80's
Add five (5) drops of pure ammonia, per ten (10) gallons of water.
Do this daily, until the NitrItes are measurable...
Once you get a NitrIte reading, you decrease the daily ammonia drops to three (3) drops per ten (10) gallons of water.
Continue this daily until you get a
Zero (0) Ammonia and a Zero (0) NitrIte reading.
At this time measure for NitrAte, you should have a 20-40ppm reading.
Now, do a 25-30% water change, discontinue the Ammonia drops, adjust the temperature and Add fish...
No dead sacrificial animals, and you are ready for a fairly healthy amount of fish...
