Hello malikmoloch
Welcome to the forum. I just approved your message, from now on it will be visible immidiately.
I am sorry to hear about your loss of females, – to me it does not seem that the reason should be the ph – even 6.2 would not have this effect.
Unless the ph is behaving very unstable, or if you have just got the fish and they came from very different water quality, – or if the adjusting time has been too low ?
Otherwise, it would be possible also for paros to live in 6.2 ph.
There are many methods of bringing down ph – I use oak extract, that is very easy, and it works well for me.
But there are many factors involved also, – in bringing down ph, but also in keeping it down. Here its also a matter of what other things you have in the tank, perhaps something drives the ph up again .. substrate, stones, whatever …
Perhaps you could tell us more about the set up …
I actually moved your post to American section, – perhaps someone will respond with regards to the alfredi question.