Hellos Guys and Girls. It´s been a few days since I made Parodinal and now I need some help. I want to develop up to 10 films at same time on a Jobo tank and I´m not sure what concentration should I use. I don´t want it to be exausted before the films be complete developed. So my thoughts are: 5 ml of Parodinal for each 120 film ==> 10 films ==> 50 ml of Parodinal. 2 liters to cover half of the reels ==> concentration 1:40. What are your thougths? Does it worth a try?