How does carbonate and general hardness affect loaches?
carbonate (KH) acts as a buffer that keeps the PH stable . (PH
is a measure of the amount of H+ in an aqueous solution). Keeping the
PH stable, ie no big/fast changes is in general more important than the
actual PH value assuming it is close to neutral (7.0).
That said, are you using baking soda (NaHCO3) to keep your KH high?
Enough baking soda will drive the PH to 8.2.
There are several different ways to lower the PH, one could reduce the KH
(slowly!!) a bit - but not to zero!!
Adding CO2 will lower the PH (if you are into that kind of thing)
Phosphoric acid buffers will drive the PH to 6.5. Commercial buffers that
advertise PH 7 are most likely a mixture of the two buffers.
Peat moss also works and will soften your water (lower GH). You can reduce the discoloration with activated carbon.
Whatever method you use, go slooooowwwww.
I ain't a scientist nor ever tried to act as such. I have over 200 loaches and 30 plus years of experiance though.Look at all the posts with pics of slime falling of in hard water to see for yourself. If you want scientific explanations pay a vet.
Geeezz, dude. I really don't think mistergreen was trying to insult you. However, some of us are geeks who try to understand how things in a systematic fashion. Doing so, one is far less likely to perpetuate
wrong information. I have talked to people with far more experience than
i have who believe that fish only grow to the size of their tank, etc. etc.
Hardness effects them because of the skin like structure as opposed to the scales of hard water fish like chiclids.
Actually, it has to do with the envirorment that the fish evolved into.
There are lots of scaled fish that like very low PH, for instance there are
many species of Anabantids that have evolved to live in some pretty acidic (PH <5) conditions.
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