|| my tap water is ph 7 with a kh of 11 degrees
|| my tank water is also ph 7 with a maximum kh of 8 or 9 (it keeps
|| dropping see my other post called ph kh snails and clown loach)
|| i get falling kh and ultimately ph, so i want to add buffering
|| capacity to the water to maintain ph 7.0 if possible, but i am
|| worried that coral will buffer it up to 8 ish.....i just dont want
|| to kill any fish by experimenting.
||
|| chris

1. Most fish will adjust to whatever water you have... that being said...
let's move on..
2. pH doesn't harm fish unless it changes quickly or dramatically... pH
swings as they are called, is more dangerous than just keeping a different
pH than a fish starts out in...
3. Unless you're actively breeding, a pH between 6.5 and 7.5 isn't bad for
alot of fish...I've kept guppies in both extremes, you get females with a
lower pH and males with a higher pH...
4 for a planted tank, your pH and kH give you a CO2 level of 33ppm which
seems erroneous... are you injecting CO2 at all?

If you have a 7.0 tank, and 11kH I'd be happy with it... I'd just settle on
a weekly routine of doing a water change and adding a teaspoon of sodium
bicarbonate (*baking soda*) to it as a buffer... that will raise your pH to
7.4, but it ultimately won't drop as fast as before... giving you a certain
time frame to work with....

Peat can lower your pH, and soften it I believe.. then adding the baking
soda as the buffer can acheive your desired affect, it is a bit of trouble
though...

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