How to get water more acidic

[Jfilk]

I've been trying to breed my angelfish an Cories but I can't figure out how to get the water more on the acidic side. Any help is welcome

 

[flitabout]

RO or DI water. That is about the only thing you can do to keep the ph lower and keep them stable. I have very high ph, and I am doing about a 50/50 mix that brings the water down to 7.4-7.6 from 8.6-8.8. You may have to play with it to get it right. just remember not more than .3 a day to acclimate them.

 

[Jfilk]

Alright thanks for letting me know