Originally Posted by AquaRick
You don't need to add a raw shrimp. That's what the pure ammonia is there for. Dose to 4ppm. A little goes a long way with that stuff. I'd add a teaspoon at a time and see how much you need. If memory serves me right, I think i only needed a 1/3 of a cup for my 125g + 40g sump.
Read this if you haven't already:
The (almost) Complete Guide and FAQ to Fishless Cycling
Agree totally with this except for the amount.
I put one small capfule in my 45 and it was way to much. Start with just a few drops and then test to see how close that got you to 4 ppm
Each time the ammonia drops, dose it back up to 4 ppm
. Keep doing this until you see nitrites start to rise. Continue dosing to 4 ppm
until you see that all the ammonia and all the nitrite are converted to nitrate within a 24 hour period. When you can dose up to 4 ppm
and then have no ammonia and nitrite 24 hours later you can start to do water changes to reduce the nitrates. Once the nitrates are below 10-20 (but as close to 0 as you can get) you can start slowly adding livestock.