2 different FIX in one bath

I need advise.

From previous print stayed about 200 ml AGFA FX fix. Today, I am going to print and need about 400 ml of the fix.

Can I mix in the fix tray 200 ml Agfa and 200 ml Amaloco fix? Is it not good idea or i will have nothing bad?

May be somebody advise me, what is the best way using 400 ml Amaloco fix or mix Agfa and Amaloco?
AlexRT

being both ammonium thiosulphate based, there should be no problem, although the Agfa has probably a lower pH.

Thank, i will try today....