Dr Tim's NH4CL drops

[markysgirl]

Hello!
Thanks for reading this.
I am cycling my fist reef tank using Dr. Tim's fishless cycling method using One & Only and his bottle of NH4CL.
I have the bottle that says I need 4 drops per gallon of water in the system.
Does anyone know how many ml/g I would use of this concentration?
I have a 75g DT and a 20g sump. I'd rather not count out 360 drops every time I add NH4CL.
I have been searching for a reliable answer in many places with little success.
I'm hoping someone here has figured this out or can provide a link to the answer.
Thank you everyone!

 

[markysgirl]

Oops I posted this in the wrong spot....

 

[Js.Aqua.Project]

If my memory is correct, there are roughly 20 drops per ml.

A quick google shows the instructions show to dose based off of water volume, not total system volume. So assuming you already have rock and sand in your tank.

1ml/5gal so that would be 15ml.

 

[markysgirl]

Thank you so much for your help.