The 2551 Jobo tank requires 330ml minimum for 2502 reel with one 120 roll inside the red tab.
The 2551 Jobo tank requires 640ml minimum for 2502 reel with five 35mm rolls, six 120 rolls or three 220 rolls inside the red tab.
The 2551 Jobo tank requires 560ml minimum for 2509N reel with twelve 4"x5" sheets.