You might want to contact Hans.
Do you guys know which online vendors raise/keep their discus inventory in hard water? Notice not talking high pH necessarily, but rather dissolved solids and so forth parameters.
You might want to contact Hans.
Mama Bear
Contact him because he sells hard-water discus or contact him because he might know vendors who do?
There is no such thing as "hard water" discus. Stendker discus (Hans in the US) are bred and raised in typical municipal water supply and will tolerate a wide variety of water conditions.
Even Asian discus will tolerate hard water. Many members here keep all kinds of discus, except wilds, in every possible water type the continental US offers
Stability is the key with water paramters!
My Discus from Hans, Stendker discus, are all full grown now in our very hard and high ph tap water. They are completely healthy and beautiful. I got them as 2" juvies last year from him.
Barb