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Old 02-18-2010, 11:37 PM   #1
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Chromis deaths in QT...

Could a PH of 8.8 be enough to kill blue/green Chromis?

This is the second school of these guys that I've had trouble with. I failed to measure PH after the first school died off. Now the second school has lost 2 of 3.

The QT has held a brown saddle clown in between schools with no problem. He was in for about 2 weeks before going to another home.

Amm., nitrites both 0, nitrates never >20. SG 1.025.

I had taken advice and used display tank water (ph 8.4) as water changes for the QT. I'm not sure I should have done that.

I'm stumped...
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Old 02-18-2010, 11:38 PM   #2
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Yes, a fish could be killed by such a pH, but my question is how you are achieving that mark?
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Old 02-18-2010, 11:48 PM   #3
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+1 for how did the pH rise from 8.4 to 8.8?
Don't use ST tank water for change water in QT. It's used water. You want pristine water in the QT which means fresh mixed and aged SW (aearated overnight or 24 hours).
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Old 02-18-2010, 11:50 PM   #4
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Quote:
is how you are achieving that mark?
Not sure what you mean exactly but...
I measure with an API liquid kit (just in case thats what you meant...lol)
I'm using a small HOB power filter, the cartridge had been in there for a few months. Today I removed the cartridge but left the bio- floss insert thing.
Also a sponge filter which has been running to about a month.
I'm also suspect of using display water for PWC's. I made sure it wasn't full of the usual bad stuff but perhaps the trace elements and buffers are used up.
I have new water mixed and aging for a PWC tomorrow.
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Old 02-18-2010, 11:53 PM   #5
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We must have been typing at the same time cmor
That used PWC was bad advice, but kinda made sense at the time.
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