Can Easy Iron and Easy Potassium be mixed together before autodosing with a dosing pump?

[Creedmoor Aquatics]

I'm currently showing signs of a possible potassium deficiency and would like to try adding Easy Potassium to my dosing regimen. I currently have Easy Green, Easy Iron, and Easy Carbon all on automatic timers with dosing pumps, and I'm wondering if I need a fourth dosing reservoir, or if Easy Iron and Easy Potassium (or Easy Iron & Easy Carbon or Easy Carbon & Easy Potassium) can be combined in a single reservoir. 

I seem to remember from one of Cory's videos that the Easy Potassium had the same amount of Potassium as Easy Green, but that it was the maximum soluble amount. Since there's also Iron in Easy Green its clear that Iron could be added to Easy Potassium, but I'm not clear if the high concentration in both Easy Iron and Easy Potassium would cause either mineral to precipitate out of solution. 

[Seattle_Aquarist]

Hi @Creedmoor Aquatics,

The only two that you cannot dose at the same time is Easy Iron and Easy Green (which contains phosphate).  Otherwise the iron and phosphate ions will combine to form iron phosphate (a particulate) and negate the dosing of both those nutrients.  -Roy