[quote=”bartian” post=1562]Yes, but bacterial growth is not necessarily bad.
Now that you are saying it, how did you measure the number of bacteria?[/quote]
It was not me who made the experience ………. as I wrote I found it in German forums.
They reported a strong, milky cloudiness after a few days.
And as I understand the text on water in paro tanks here a severe bacteria load is to be avoided:
The biological function of these low pH values is not yet fully understood, but it is likely that it mainly is to suppress harmful bacteria which may attack the eggs of the fish. In fact, the bacterial load in highly acidic water is much lower than in less acidic or even alkaline water.