Chemi-Pure impact on testing?

refinished

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Dec 21, 2006
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I added two bags of chemi-pure to my Ehiem 2215 after my 55g FW tank finished initial cycling with few hardy fish. The tank has been running for two months - three weeks with the chemi-pure. Last weekend, I added a few fish that probably doubled the bio-load in the tank. I expected a small bounce in ammonia and nitrite, but am getting results that I don't know how to interpret and I expect that the chemi-pure is the cause.

I have elevated ammonia and NO nitrites or nitrates from my Aquarium Pharmaceuticals Freshwater Master Test Kit. I am trying to control the ammonia with water changes and reduced feeding, but the fish are still showing signs of stress. Any experience with this? The chemi-pure is supposed to neutralize nitrates and nitrites, but I didn't expect it to eliminate them or perhaps it is just interfering with my testing chemicals ability to detect? Any comments on what Chemi-pure may be doing to my tank chemistry?
 
Mgamer - I tested after seeing some slight stress signs in the fish and just before the water change routine. The reading was .5ish. A higher spike than I anticipated after adding the new fish, but I am prepared to do wc's to keep it down until stabilized.

jm1212 - Yes, I know this, but since I have no reason to think that I have 'uncycled' my tank in some way, I am inclined to suspect the chemi-pure is throwing off the tests or is VERY effective at dealing with Nitrates and Nitrites. There hasn't been any chemical or un-Primed water introduced to the tank other than the CP resin. The filter hasn't be left w/o flow. What else might kill my bacterial friends?

I googled around and didn't find any comments on what CP changes the ammonia, nitrites, and nitrites into and how the various tests react to the resulting compounds. My question is, again, is there any experience on CPs effect on water testing? Thanks!
 
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