They do providing your tank is set up for discus.... eg- big! (bigger than you would need for just rams, pesonally i wouldnt put discus in less than 240L/4ft) and R.O, tap water just doesnt do discus any good long term even if you can aclimatise them to it.
Yeah, i have a 60 gallon tank set up with some rams in there right now, quite under populated
I may just upgrade to 100 gallons in the near future and then purchase discus
Any specific characteristics that i need to know about discus before buying them?
I know they need higher temperatures but anything else really important?