Planted Tank Guru
Join Date: Jul 2010
Location: British Columbia, Canada
No Abrium, juvenile discus don't require the massive, multi-week wcs you mentioned, unless you're wanting to grow them out to their optimum size. Of course, it depends on the size of 'juveniles' - if they're 2" - they're babies really, and do require a lot of careful, constant attention.
On the other hand, if they're 3", or 3.5" juvies, the situation changes completely, and you can get by with a lot less hard work and attention.
As for getting adults, yes the routine gets a lot easier, but still, you have to follow a few simple 'rules' - mainly ensuring you don't try to keep them in sub-standard water conditions.
As far as pH is concerned, discus can, and will, thrive in soft or hard water, acidic or alkaline, so long as the pH is kept relatively constant. Example: if your pH is 7.6 and steady that way - no problem, your discus will be just fine. Or if it's 6.0, that's fine too.
What's your pH, Abrium ? - I'll bet it's quite ok to keep discus.
And given that you have a 150 gal tank, even if heavily planted, you can surely succeed in keeping discus.
If you'd like to consider it, and have any questions at all, don't hesitate to PM me, I'd be more than happy to help if I can.