1) What is the best filter in market today for discus? i was considering:
I don't live in the US so i don't know what filter u guys use there, so no comments.
2) Do i need live plants? or can i have just fake plants? will fake plants harm discus?
I would recommend real plants, they look a lot better and add oxygen into the water, also reduce
nitrate level, which reduce algae growth. Fake plants won't hurt i guess, but be careful with ones with sharp edges, discus eyes are big and stick out a bit, so you might want to be careful on that. You would need to do more research if you want real plants, as only a few can survive at discus's temperature
3) i was going to put in 65 watt current usa satellite light system.
Again, I don't no what you guys use over there, so another member will help you soon.
4) What kinda substrate is good? i was going to go with regular aquarium gravel. (i dont want bare bottom tank)
If you are not going with the pigeon blood strain, i highly recommend black gravel and black background, they make you discus stand out significantly. If you are going with pigeon blood, 2 inches of sand and a light colored background would look neat too. IMO any gravel should do as discus doesn't peck on gravels like
goldfish do.