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post #1 of 6 Old 03-17-2013, 03:51 AM Thread Starter
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Two fish losses in one week

One was a Neon Tetra and the other a Harlequin Rasbora. Neither showed any signs of illness beforehand or obvious cause on the bodies. The remainder of the fish seem healthy. They are lively and eating okay.

Water parameters fine, 0 ammonia, 0 nitrite, 10 nitrate. Temp around 78.

The 125l tank is at capacity but not overstocked and I do small water changes every day as my tap water has 20ppm nitrate.

Could this just be coincidence? I have had the fish that died for over a year.
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post #2 of 6 Old 03-17-2013, 06:49 AM
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Is stress a factor? How many of each type of fish are in the tank and what size tank? Have you seen signs of aggression?

Animal testing is a terrible idea; they get all nervous and give the wrong answers.
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post #3 of 6 Old 03-17-2013, 07:28 AM Thread Starter
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Is stress a factor? How many of each type of fish are in the tank and what size tank? Have you seen signs of aggression?
I had 6 neons and 4 harlequins. My other fish are 6 corydoras, a red lizard whiptail and 2 reticulated hillstream loach (+2 loach fry) so no stress as far as I can see. The tank is 125 litre.
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post #4 of 6 Old 03-17-2013, 08:11 AM
Your numbers don't add up? It seems to me with source water with 20ppm, unless extremely heavily planted, there's no way you could have tank nitrates of 10ppm. It would seem more likely that your tank nitrates are higher than 20ppm.

What do you use to test for nitrates? If you use API Freshwater, do you shake regent #2 really well....even rap on a table (it has an element that separates from the solution and can result in false low readings).

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Last edited by AbbeysDad; 03-17-2013 at 08:15 AM.
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post #5 of 6 Old 03-17-2013, 08:40 AM Thread Starter
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Your numbers don't add up? It seems to me with source water with 20ppm, unless extremely heavily planted, there's no way you could have tank nitrates of 10ppm. It would seem more likely that your tank nitrates are higher than 20ppm.

What do you use to test for nitrates? If you use API Freshwater, do you shake regent #2 really well....even rap on a table (it has an element that separates from the solution and can result in false low readings).
I use an API freshwater liquid test kit and I have 2 bags of JBL NitratreX in the filter that have considerably reduced the Nitrates.

JBL NitratEX - Aquatis Fresh water - JBL

Actually, I think something similar was recommended by you in a previous thread where I was worried about my nitrate levels.
My tank is also quite heavily planted.
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post #6 of 6 Old 03-17-2013, 09:23 AM
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I use an API freshwater liquid test kit and I have 2 bags of JBL NitratreX in the filter that have considerably reduced the Nitrates.

JBL NitratEX - Aquatis Fresh water - JBL

Actually, I think something similar was recommended by you in a previous thread where I was worried about my nitrate levels.
My tank is also quite heavily planted.
Thanks for the clarification.

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