i don't know if its proper to reply in this thread. Sorry Charlon.
Well Cikkus, first you should have the basics ready...
Adequate light ( 1 watt per 2 litres minimum imo) 2 T5 tubes should be ideal for low light- moderate light plants
A good plant substrate... this is very important, especially when rosette plants are to be used like swords and crypts
Some sort of Carbon. Its always ideal to use pressurised CO2. Some litle CO2 is good even with discus.
Good water supply... tap water can be nasty on some parts of the island due to salinity and tds
Fertilisation in water: Plants will need a constant fertilisation regime which you will have to find balance with your fish and light.
plants ideal for discus tank (higher temperatures) are:
Cryptocoryne species, Nymphea lotus, Hygrophila Corymbosa, Echinodorus species (including E. tenellus for foreground)
Sorry for not being prompt to answer, but having two fora may be difficult to manage plus that i am very busy at the moment with work.
I have seen several success with planted discus tanks... so its no big deal if you follow certail basic requirements... for the plants