My tank is about 135 liters (36 gallon), I wish to have a concentration of .5ppm ammonia. I am checking to see if the tank is cycled.
I eather made a misscalculation or somthing else is wrong. my math is at the bottom. but I figure I need just over a half of a ml. of household ammonia ( I am told is a 10% solution) to get .5ppm
so I added just over a half of a ml. of ammonia, used my API liguid drop test kit, and it reads just bairly green between 0 and .25 ppm
I figure well maybe the concentration is not 10% ammonia, maybe its 5%. so I add another half ml. and do the test again. still same exact color, I am holding the tubes side by side.
heck Ill add another ml. and test again, still the same color.
so I have one tube left and I fill it with ammonia straight from the bottle. and do the test. It is greener, still less than 2ppm.
so what is wrong here, I figure it has got to 1) me, it could happen. 2)my API liquid test kit is bad, its about 6 months old. and one time while I was moving it was left in the truck overnight and it may have froze. 3) maybe the ammonia is bad, I remember buying it about 2 months ago, I used it once it should still be good, I dont see how it could have become contaminated, and it still smells fresh.
I am not going to add anymore I probably added too much already, but I will need to know when the tank is cycled and as of now I dont have a good test. maybe I'll buy another test kit
I eather made a misscalculation or somthing else is wrong. here is my math.
135 l. = 135,000 ml. = 135,000,000 mg.
135,000,000 mg / 1,000,000 = 135
so 135 mg. makes 1ppm
135mg. /2 = 67.5mg.
67.5mg = .0675ml.
now if we were adding pure ammonia we would add .0675 ml. but sence we are using a 10% solution (I am told household ammonia is about 10%) we need 10X that amount =.675ml