yup 15ml was i minimun guess dude ...
I JUST made a res for my mishmash as Im having probs & it needed doing ffs ....I put 40ml into 18L in the end . So say thats 35ml/15L .... you will have 25ml/13L (theoretically !)... Try it & see Pal ? ,and get a decent meter bro ... there all you have to rely on & the most important bit of kit you have

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