I have bred and raised wild Brown/Blue Discus in tap water with a KH of 8, GH 12 and pH 7.6. TDS was 475 ppm. That shows what is possible but not what I recommend to beginners.
There is a lot more to breeding discus than test results.
Wild discus are more difficult to breed yet when they do they tend to be better parents than many domestic strains.
I could write a book on nothing but the urban myths of the discus crowd.
What color of shirt should a discus breeder wear?

Want to know more about what a discus really is? Read Bleher's Discus Vol. 1.
Red Turquoise 11 months old with first spawn.

Spawn from pair at four weeks old.

Same fry at two months.
