Get it from ACE. It's 10%.
To get my 33 gallons of water up to 2ppm took 1.25ml of 10% ammonia.
I suspect you have 100 gallons of water, so 3.75 to 4 ml of ACE 10% ammonia will do it for you.
Big question is do you have nitrates? If so, you have been converting ammonia to nitrite and nitrite to nitrate, so you are cycling.
Screw the shrimp approach.. use ammonia, dose up to 2ppm, then watch and you know quantitatively exactly what is going on.