I'm Cycling?

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Namtab

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first here is a little bit of a backstory... I recently filled up my 125 gallon tank, after assembling my filters I found some fungus on my driftwood, the kind of fungus you only find after/when your tank is cycled (pic attached)...

There are no fish in the tank, There are no plants in the tank, and I have never dosed ammonia.

Well I just tested my water (pics attached) and it appears I have 0.25 ammonia, 0 nitrite, and 10-20 nitrate.

The only thing I think could have given any sort of ammonia reading is debris from when I washed the sand (grass, bugs, sticks etc.)

Is this a thing that happens? I am seriously confused right now
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AWheeler

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Test your tap for nitrates. The ammonia is at 0, to my eyes at least. Looks to be a bit of nitrite and nitrate though. It could be that something is rotting in your tank making it cycle, though...cycle enough to add a large amount of fish after there is no ammonia or nitrite...probably not.
 
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Namtab

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Test your tap for nitrates. The ammonia is at 0, to my eyes at least. Looks to be a bit of nitrite and nitrate though. It could be that something is rotting in your tank making it cycle, though...cycle enough to add a large amount of fish after there is no ammonia or nitrite...probably not.
Tap nitrate is at 5ppm (pic attached), the lighting in the room is really weird, to me the picture looked different than the actual color, I could see the slightest tinge of green in the ammonia test.
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Even if my tap does have nitrates, (which it does apparently) does it explain the fungus on the wood? I thought that fungus was caused by the bacteria.
 
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Namtab

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I would read that as 0 ammonia, 0 nitrite, 5-10 nitrate. Hard to tell with lighting in pics.

Is your tap water from city or well?
It is from a well.
Tap parameters: ammonia 0 nitrite 0 nitrate 5.

I did just find a small insect (dead) in the tank, I am assuming that might be the cause?
 

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The fungus/mold is likely causing ammonia in your tank, it can show up while you are cycling, if you are cycled, and really at anytime (maybe not that kind, but other kinds). I would say that your tank is cycling right now, and the stuff on the wood is likely your source of ammonia.
 

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It is highly possible to have ammonia in well water from fertilizer run off that leeches into the aquifer, but from what I see it's 0ppm. It's strange to me that quite a few people lately seem to be reading the ammonia as .25ppm. This is about the 4th thread in a week that people have reported .25 ammonia when there should be none.

The fungus/mold is likely causing ammonia in your tank, it can show up while you are cycling, if you are cycled, and really at anytime (maybe not that kind, but other kinds). I would say that your tank is cycling right now, and the stuff on the wood is likely your source of ammonia.
As the driftwood decomposes it will add ammonia to the tank, so this is also possibly the source.
 
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Namtab

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The fungus/mold is likely causing ammonia in your tank, it can show up while you are cycling, if you are cycled, and really at anytime (maybe not that kind, but other kinds). I would say that your tank is cycling right now, and the stuff on the wood is likely your source of ammonia.
It is more slime than mold or fungus, I normally only see it in a cycled/cycling tank, I never knew it produced ammonia.
 

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It is more slime than mold or fungus, I normally only see it in a cycled/cycling tank, I never knew it produced ammonia.
That "slime" is extremely common for a new piece of driftwood in a tank. It will eventually go away and is completely harmless even if there were fish in.
 
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Namtab

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That "slime" is extremely common for a new piece of driftwood in a tank. It will eventually go away and is completely harmless even if there were fish in.
It might just be that my eyes are failing/playing tricks on me, I did find a few blades of grass and a small (dead) bug at the bottom of the tank.
 
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Namtab

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Just tested tap water,
Ammonia: not quite 0.25 but not 0 either
Nitrites: 0
Nitrates: again, about 5.
 

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It seems it's likely you have ammonia in your well water (fairly common). I hope you plan on using Seachem Prime for your water conditioner, because it works well to bind ammonia long enough for the BB to consume it.
 
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It seems it's likely you have ammonia in your well water (fairly common). I hope you plan on using Seachem Prime for your water conditioner, because it works well to bind ammonia long enough for the BB to consume it.
Yes I am using Seachem prime (I have more than one tank running atm, also this isn't my first tank)
The funny thing is I was planning on getting an RO/DI unit for various reasons (none of them serious problems), now I have one more reason to add to that list (I do realize this isn't a serious problem either).
 

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Yes I am using Seachem prime (I have more than one tank running atm, also this isn't my first tank)
The funny thing is I was planning on getting an RO/DI unit for various reasons (none of them serious problems), now I have one more reason to add to that list (I do realize this isn't a serious problem either).
Nice! Yeah I was mostly curious. That amount of ammonia in well water isn't that concerning and fairly common like I said, but it's something to be aware of for sure.

Hopefully that slime will clear up sooner than later for you. Good luck!
 
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