Quote:
Originally Posted by heathlindner25
I christen mine with alittle urine!
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The disadvantage of urine is quantity of ammonia unknown.
If I plan to do a 100% water change and cycle in a small container, I just urinate in it. Nitrite could be over 30 ppm, I don't care.
But if you plan to retain the water you cycle with, a known amount of ammonia is better. You won't "age" the water excessively. Just enough one or two shots of ammonia well timed is best.