usually we hear of people tryin to raise ph for africans.....lowering PH for discus ok.... but no need too on your fish.... especially for a F1, or further generation tank raised midas/rd's... they should be fine even in well water with 8.0 ph.... Also, moss, and other ways to lower ph has a water softner effect, and its better to have harder water for your fish... he can deal with the higher ph..... thats why New world cichlids are considered an easier fish to maintain than africans... they adapt really well and are super hardy!
What are your water parameters???? if your up at 9.0 ph, maybe we need to look into something though... lol.... so better let us know what your dealing with first.
if you were just wondering for sake of conversation then I agree with methods mentioned...I especially like moss, and the PH reducer chem you can buy at any LFS... but like sidekicking said, has a big yoyo effect (meaning it will bounce back quickly if not buffered to stay down) and PH going up and down is waaaaaaaaaaaaaaay worse for fish than a steady high or low ph.
