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Fishless (Ammonia) Cycling Log

2K views 20 replies 5 participants last post by  Mizzle 
#1 ·
Hello, I recently bought a 20 gallon aquarium for my three bettas and I am in the process of cycling it. I've done a lot of research and found a lot of bogus information about the subject so I've decided to post a log of my cycle for anyone interested.

The aquarium I'm setting up is a 20 gallon long with a penguin 150 biowheel filter & a 75 watt heater (all Marineland hardware)

I'm using the API Freshwater Master Test Kit & ACE brand ammonia ( 10% Ammonium Hydroxide)

I will always be testing my water before adding ammonia

October 19th, 2009

pH = 7.6
ammonia = 1-2ppm
nitrites = 0.0 ppm
nitrates = 0.0 ppm

Octover 20th, 2009

pH = 7.4
ammonia = 1-2ppm (added 5 drops post testing)
nitrites = 0.0 ppm
nitrates = 0.0 ppm





 
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#2 ·
theres easier ways to cycle without adding ammonia.
you could just add fish food without fish in there, itll create ammonia
 
#4 · (Edited)
Arguably, cycling with ammonia is much easier than cycling with fish food.

You can add the exact amount of ammonia you want so there is no guess work, there is no cleanup afterwards, it's faster (you have to wait on the food to start decomposing to produce any ammonia), and from what I've read there are a whole number of problems that can occur from rotting fish food.

I know both can work, but I don't think cycling with fish food is by any means the easier method.
 
#3 · (Edited)
How much ammonia are you dosing your 20g with?
My calculations come to 3.9mL per dose.
What is your temp? I cooked up my chem brew
at 82(F).
I always took a 1hr reading for NH(3) after dosing to make
sure I was maintaining the same dose.
Once you NO(2) & NO(3) start showing up, you should be testing
daily.

Both my tanks took three weeks. When my levels read:
0/0/<10ppm, I did a 48 hr test to make sure the levels were
stable, then I acclimated my fish. Fish should be added
2-3 at a time, wait two weeks, add 2-3 again until stocked.
So far, no probs, no algae.
Good Luck!
 
#5 ·
My starting dose was around 3mL ( about 20 drops ) to reach an ammonia ppm of around 1.5. I'm dosing daily with 5 drops now to slowly raise it to around 3-4ppm & my temperature is at 86(F)

You say your aquariums took around 2-3 weeks to fully cycle? Thats good to hear, hopefully I will have the same luck. Any tips would really be welcomed!
 
#6 · (Edited)
October 21, 2009

pH = 7.6
ammonia = 4.0 ppm
nitrites = 0.0 ppm
nitrates = 5.0 ppm

I tested earlier and my ammonia levels were still floating around 2.0 ppm so I added 5 drops, waited a few hours, and tested again. The results above are the results I got.

I'm not sure where the nitrates came from. I tested & retested and it stood true. Maybe the nitrites had already been consumed by the time I tested?
 
#11 ·
October 22, 2009

pH = 7.6
ammonia = 4.0 ppm
nitrites = 0.0 ppm
nitrates = 5.0 ppm

thanks Christina and 1077 for the input. If you two veterans say its a rad way to do it then I believe you =D

I am also an adult, but I can see not wanting a kid to be using ammonia... I've almost knocked myself out with it a few times now
 
#13 ·
If I understood your records, your NH(3) dosing aligns with
calculations per volume of water. I too am puzzled by the
appearance of NO(3) ahead of NO(2). I can only speculate
there was residue on something associated with the tank.

What substrate are you using?
With regard to the dosing method; I find the drop method a little
chancy, I used a lab pipette but you could just as easily use
a baby medicine dropper with mL markings, or sharpie one
of your tubes with the level 3.9mL.

With regard to API test reading; it is a common problem; however linking
to another forum is prohibited here therefore; I can only say that API
recommendations state that not touching the tube to the card and
even looking down through the top of the open tube has been reported
as helpful. MerchantWu and I both had this problem; I always erred
on the side of caution. If I was waiting for a reading to rise, I chose the
lower reading, if I was waiting for it to drop, I chose the higher reading.

One last thing; I would add the cheapest plants I could get my hands on,
immediately. Plants move the process along and help give
stable chem readings. They are necessary for processing both
NO(2) & NO(3).
Keep us posted.
 
#14 · (Edited)
October 23, 2009

pH = 7.6
ammonia = 2.0-3.0 ppm
nitrites = 0.0 ppm
nitrates = about 5.0 ppm

ammonia definitely dropped down a bit since my last reading, but still no sign of any nitrites. Should I keep dosing to bump the ammonia back up to 4.0 ppm? When did you guys get your first nitrite reading?
 
#15 · (Edited)
I would continue to dose NH(3) @ 4ppm until after you see your
nitrIte & nitrAtes spike.
I had my first NO(2) & NO(3) readings simultaneously on day six I believe.
Keeping in mind I had some Marimo balls & a Java Fern and some
other specimemen plants in the tanks and I was using Floralite substrate.

I am wondering about your NH(3) dosing method, 1 drop does not equal 1mL
consistently. I am pretty consistent about making sure all my chems are
exact.
Here is another bit of information I gleaned along the way;
the API test kit recommendations suggest shaking those bottles pretty
well. Especially the 2nd bottle for NO(3). I have read comments
where other tank cyclers have banged the 2nd bottle, upside down,
on the counter before shaking it, and to quote them
"shake until your arm hurts, switch hands, repeat."
My method is to put that 2nd bottle in my hand with
every one of the other bottles when I shake them.
So, ph bottle plus 2nd NO(3) bottle, shake, do ph test.
1st NH(3) bottle plus NO(3) bottle, shake, and so forth.
By the time I get to the actual nitrAte test, that 2nd bottle
has been shaken 4-5x.

I'm going to poke around and ask my other aqua-scaping
colleagues if they have ever had a nitrAte reading prior
to a nitrIte reading. I'll let you know what they report.

{ 10g planting scheme in the photo-journal }
 
#16 ·
Yeah my dosing method isn't exact.

I have definitely been shaking the 2nd NO(3) bottle thoroughly everytime.

Theres also a bit of information I didn't describe about my tank. When I first got it I was cycling with ammonia & a bottle of Top Fin Bacterial Supplement. I didn't have my API master kit, just a dip stick. After about 7 days when I finally got my API master kit, I realized I had way too much ammonia in my tank and did almost a 100% water change. Since then I haven't used the bacterial supplement and haven't overdosed on ammonia.
 
#17 ·
First week summary (7 days)

I'm still dosing with ammonia to keep my NH(3) levels at around 4.0 ppm. I still haven't seen a big ammonia drop or any sign of nitrites at all.


October 24, 2009

pH = 7.6
ammonia = 3-4 ppm (added ammonia to get back to around 4.0)
nitrites = 0.0 ppm
nitrates = still around 5.0 ppm
 
#18 ·
I did the same thing re: the supplement the first couple of days.
My recommendation is discontinue using it. There is no
measurable, living bacteria in it. I believe I messed up
the first couple of days with the supplement. However,
once I discontinued using it, the chems righted themselves
within two or three days.

The only bac. supplement I have read others using is
Bio-Spira and only when they knew the conditions under
which it was kept. (translate: maybe two or three of the
twenty or so journals I have read)
No long stays in a warehouse or stockroom with variable
temperetures. The bacteria we are cultivating grows
between 68-ish and 86(F). Not as sure about the low
temp as I am about the high temp. This bacteria, unlike some
that can live after freezing and unlike yoghurt/cheese bacteria,
live and reproduce at basically the same temps as the fish.

I would not let yourself get discouraged at this stage of the
game. The nitrIte chomping bacteria takes a while to develop.
But wait, it gets more frustrating; the nitrAte bacteria normally
takes 2x longer than the nitrIte. In your case however, it is
in a word; a crap-shoot. MerchantWu & I commiserated back and
forth in another thread, still are once in a while.

I spent the time reading everything I could find. And find good
information, I did, indeed. The most beneficial to me, were the
Tank Logs & Journals, then the experts.
Hang in there, keep us posted!
 
#20 · (Edited)
October 26, 2009 (Day 9)

pH = 7.8
ammonia = 4.0 ppm
nitrites = 0.0 ppm
nitrates = 0.0 - 5.0 ppm

not a whole lot is changing, trying to keep my ammonia steady for now.

though it may not appear this way. the readings from today & yesterday were around 24 hours apart. I just forgot to post them last night =)
 
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