Nitrates = 50, Ahhh! - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 2 Old 12-25-2007, 07:51 AM Thread Starter
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Nitrates = 50, Ahhh!

So 2 days ago I cleaned my canister filter for the first time, the tank is 6 months old and I figured it was time. The tank is 120g with a Eheim filter. There is (1) ghost knife, (2) bala sharks, (7) red tailed tetra, (1) rope fish and (5) giant danios. The tank has several plants, but not tons and it is by no means a high tech tank.

Someone at another fish forum told me to only clean the filter media in the canister. I think I might have overdone it. Here is what was in the filter from top to bottom:

1/4" Black filter looking thing, I am guessing it is carbon
1/2" white filter
A ton of co co puff looking balls
Another 1/2" white filter
A ton of small mini tubes
Another filter

I took and cleaned the 1/2" black filter, and both white filters at the top. I removed but did not clean the co co puffs. I didn't touch anything else. Unwisely I cleaned the filters with untreated tap water. Maybe I should have cleaned them with fish water?

Regardless, all of my water settings are normal but the Nitrates, they are at 50!!! I did (2) water changes yesterday about 24% and 20% but this morning I am still at 50! What do I do?

Here are the normal settings:

Nitrites: 0
Nitrates (Normally 10-20): 50
Ammonia: 0
Hardness: 180
pH: 6.4 (low I know)

What do I do? Did I completely throw the cycle out of whack? I use Prime to clean up tap water but my understanding is to not use Prime with an un-cycled tank since it kills ammonia.

I need some advise, thanks!!!
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post #2 of 2 Old 12-25-2007, 04:12 PM
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The chlorine may have affected the media adversely. This would obviously depend on your water's default params, btw.

Tanks: 40 gal FW setup, 10 gal Reef tank.

Old BC8 setup:
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