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Old 12-04-2011, 11:36 AM   #1
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Cool Dead Fish This Morning

I had a dead fish today. Tank is Freshwater planted 46 gallon running about 2 weeks. I am new to this hobby and need expert advice! Water tested today was Temp.= 76, pH=7.6, NH3=2ppm, NO2= 0ppm, and NO3=20ppm. I want to ensure the safety of my fish! Do any of my test results look out of line? Thank you for helping.
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Old 12-04-2011, 11:40 AM   #2
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Quote:
Originally Posted by gmanova
I had a dead fish today. Tank is Freshwater planted 46 gallon running about 2 weeks. I am new to this hobby and need expert advice! Water tested today was Temp.= 76, pH=7.6, NH3=2ppm, NO2= 0ppm, and NO3=20ppm. I want to ensure the safety of my fish! Do any of my test results look out of line? Thank you for helping.
The ammonia (NH3) is definitely what caused it.
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Old 12-04-2011, 11:41 AM   #3
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what is the fish, did it look torn apart, what are the tankmates? xx
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Old 12-04-2011, 11:51 AM   #4
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Yea it seems you had an ammonia spike, however this may be from the dead fish depending on how long it's been sat there.

Anyways a couple large (80%) water changes are needed to bring the ammo and trAtes down.
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Old 12-04-2011, 11:52 AM   #5
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Cool

Platy Hi Fin died. I had 2. Also have 2 Neon tetras and @ Pristella tetras
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Old 12-04-2011, 11:59 AM   #6
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Quote:
Originally Posted by gmanova
Platy Hi Fin died. I had 2. Also have 2 Neon tetras and @ Pristella tetras
Did you cycle the tank?
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Old 12-04-2011, 12:00 PM   #7
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Quote:
Originally Posted by gmanova
Platy Hi Fin died. I had 2. Also have 2 Neon tetras and @ Pristella tetras
Would recommend filling out the tetra schools to around 6ish to reduce stress on them, did you see the fish yesterday before it died or is it possible it has been sat the re for a while?
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Old 12-04-2011, 12:05 PM   #8
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Cool

I saw the fish last night! IT WASN't LIVELY AT ALL AND DID NOT EAT. So it died overnight! It is in one piece. No signs of any damage.
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Old 12-04-2011, 12:09 PM   #9
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Originally Posted by gmanova
I saw the fish last night! IT WASN't LIVELY AT ALL AND DID NOT EAT. So it died overnight! It is in one piece. No signs of any damage.
Relax...

Have you performed the water changes yet?

If not that should be your first priority, as asked before was this tank fish less cycled or cycled in anyway?

**Also just for future reference if a fish isnt its usual self and not eating a water test should be high up on your list.**
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Old 12-04-2011, 12:17 PM   #10
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A 15% Water change was done last week.
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Old 12-04-2011, 12:18 PM   #11
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Almost gaurunteed it was the ammonia level.
How long was NH3 as 2ppm? Did you cycle the tank? Other people have asked this but you beat around the bush
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Old 12-04-2011, 12:19 PM   #12
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Also, if the water is safe and cycled, get more than 2 tetras. 5+ of each species
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Old 12-04-2011, 12:30 PM   #13
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+1 definitely an ammonia problem. 2ppm is lethal to fish, as you have found out Sorry for your loss. I too lost a tetra this morning although I had a spike in ammonia to 0.5ppm. It was new in the tank and was more likely stress related or a sick fish from the lfs.

Suggest you change 75% of the water immediately and test again tomorrow. If its still above 0.25ppm, which is likely, do a 50% water change and test again the next day. Repeat until as close to 0% as possible. Monitor it closely everyday.
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Old 12-04-2011, 12:34 PM   #14
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Quote:
Originally Posted by gmanova
A 15% Water change was done last week.
Look at it this way...

You have 2ppm (deadly) ammonia, if you change 50% of the water it's still 1ppm (deadly).

Another 50% is 0.5ppm (still possible death) then another (50%) to 0.25ppm (still possible death)

The next 50% would be enough to bring it to 0.125ppm (stress zone, not wanted)

As you can see a fair amount of water changes are required!
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Old 12-04-2011, 01:38 PM   #15
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A 15% Water change was done last week.
That mere 15% water change done last week is why your fish is dead.

A 15% Partial Water Change (PWC) is totally inadequate, especially if done last week. It seems most people who keep their fish alive -- and healthy -- change 25% to 50% of the water every week for cycled, established tanks. However, your tank is neither cycled nor established. A 15% Partial Water Change (PWC) is even more inadequate since you have fish producing ammonia waste in an uncycled tank that is incapable of de-toxifying that ammonia waste because the tank has been running for only two weeks as you state in the following message:

Quote:
Originally Posted by gmanova View Post
I had a dead fish today. Tank is Freshwater planted 46 gallon running about 2 weeks.
Cycling a tank is the process of growing a colony of bacteria that can process fish waste (ammonia) into less toxic chemicals. Cycling doesn't occur in 24 hours, nor 48 hours, nor in two weeks. Cycling generally requires 6 to 8 weeks.

I second the following post:

Quote:
Originally Posted by Scouser View Post
Look at it this way...

You have 2ppm (deadly) ammonia, if you change 50% of the water it's still 1ppm (deadly).

Another 50% is 0.5ppm (still possible death) then another (50%) to 0.25ppm (still possible death)

The next 50% would be enough to bring it to 0.125ppm (stress zone, not wanted)

As you can see a fair amount of water changes are required!
in your tank right now you have 8 times the "unhealthy" level of ammonia.

So, if you want your remaining fish to not die, then please change 50% of your water as soon as possible. Then follow up with more 50% PWC every 4 to 12 hours untill your ammonia level is less than 0.25 ppm.
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