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Old 04-06-2006, 12:31 AM posted to rec.aquaria.freshwater.plants
~Roy the good old boy!
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Default Which Rock(s) Messed Up My pH?

Evidently you added a rock that was calcium based for the ph to go so
high. Limestone will do that. Take the rocks and add a few drops of
vinegar on a clean spot on each one . If it fizzes thats the
culprit....Low PH makes calcium based subtances start to dissolve or
leech into the water raising the ph....

On 3 Jun 2006 14:44:06 -0700, "IDzine01"
About a month ago I added three rocks (well, 2 large and several small
matching ones) to my aquarium and a few days later my male dwarf
gourami began to loose color, stop building nests and won't spawn.

Here's his photo, he looks pathetic...

I know NOTHING about identifying rocks and stones so I'm posting their
photos in hope that someone can tell me which one(s) altered my pH.
(Was 6.9 and is now 7.7)

I was hoping the gourami would grow used to the new pH but he's still
pale after a month. The rocks are holding up an embankment so if it's
just one rock that is the culpret I'd rather just remove the one rather
then the entire grouping.

We'll call this rock 1:

Rock 2:

Rock 3: (one of several)

Thanks guys n gals. I know it's not really a 'plant' question but
you'all seem to know a lot about these aquascaping things.