Due to a freak accident with my heater & sudden severe temp drop

one of my Male blue rams has developed "pop eye"

I have been reccomended to use Metro as a friend of mine cured their discus problems with it.

I have 4 Apisto's in the tank where the ram is affected, Will I have to treat seperately? or is it better to treat all of the fish?

I have not used Metro before, and really only had friends use it on Discus, so would my Dwarf's be ok with this?

in the tank I have 3x Juvi Apisto's one adult male & a pair of german bred Blue rams along with a common BN.

If the metro affects the Apisto's I will just have to leave it I think, or try to treat seperately as my quarantine tank has turned into an apisto tank :P
although my ram is one of my fave's I don't want to risk my Juvi's

also will I be able to move the affected fish as I am moving house in 13 days, and if it's going to stress him further, I might have to arrnage a babysitter until he is better.

I have had pop eye on a wild german Blue ram female before, unfortunately with some bad advice I treated her with Malachite green and she didn't make it.

I am very open to suggestions so please don't hold back!