# Math Question (dr Tims Ammonia)

#### Bruno

##### New Member
So, dr tims ammonia solution says 4 drops per gallon, if i got this right that would be 40 drops for 10 gallons. I have a 40 gallon tank so then I would be adding 160 drops or about a teaspoon and a half of solution. Did i get this right? also is dr tims "recipe for success" on fishless cycling still up to date? just want to be extra careful im not messing this up.

#### NavyChief20

##### Well Known Member
Bruno said:
So, dr tims ammonia solution says 4 drops per gallon, if i got this right that would be 40 drops for 10 gallons. I have a 40 gallon tank so then I would be adding 160 drops or about a teaspoon and a half of solution. Did i get this right? also is dr tims "recipe for success" on fishless cycling still up to date? just want to be extra careful im not messing this up.
20 drops = 1mL
5 drops = 1/4 mL
So 4 gallons requires 1mL
10 mL for 40 gallons.

10mL is roughly 2 teaspoons.

##### Fishlore VIP
I did 3 teaspoons for my 29 gallon and my ammonia ended up being 8 ppm

#### Jayd976

##### Well Known Member
If i remember correctly the directions on the bottle were double whats needed. Its a typo that still hasn't been corrected a search on the product will yield this error and explain the right dosage. Cut the recommended dosage on the bottle in half I believe to achieve the correct amount of 2-4ppm.

#### Bruno

##### New Member
ok thanks everyone, when the tank is cycled, the numbers should be all 0 but with some nitrAtes correct?or am i wrong

#### Jayd976

##### Well Known Member
Correct. Not sure what kind of tank your going for, but you want to aim for under 20ppm for fresh.

#### Bruno

##### New Member
alright good to know, thanks everyone