I wouldn't mix Bolivian ram with two rams - and the German blue and golden are the same species so you'd have to find a bonded male/female pair. Two males would not work together, neither would a male/female non-bonded pair. So either a Bolivian ram or a bonded pair of rams.
I have never tried keeping peacock gudgeons with rams of either species, but my feeling is it's not a good idea. Both are territorial fish living in the bottom third of the tank, and they may not get on together. Then throw the loaches into the mix and there could be trouble.
I have never tried keeping peacock gudgeons with rams of either species, but my feeling is it's not a good idea. Both are territorial fish living in the bottom third of the tank, and they may not get on together. Then throw the loaches into the mix and there could be trouble.