 ModaStop
My own stopbath...hmm...a lot may use it, but I found out myself...
It's odourless...
To make 1 litre
* 5-10 grams of citric acid (powder)
* Water to make one litre
Use as it is.
Concentrate
* 100 grams of citric acid (powder)
* Water to make one litre
Dilute 1+19 for working solution.
I don't use any indicator as the stuff is so cheap I can use it as use-and throw-away. This is good for me as I don't have my own dark room and have to transport my chemicals to and from my home every time. | 
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