New 30 gallon cycling journal - Page 3 - Tropical Fish Keeping - Aquarium fish care and resources
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post #21 of 34 Old 11-17-2008, 08:07 PM Thread Starter
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Second day tank setup 11-2

Nitrate 0 ppm
Nitrite 0 ppm
Ammonia 0 ppm - .25 ppm
High Range PH 8.0

5th day tank setup 11-5

Nitrate 0 - 5.0 ppm
Nitrite .25 ppm
Ammonia .25 ppm
High Range PH 8.2

11-8

Nitrate 5.0 ppm
Nitrite .25 ppm
Ammonia 1.0 ppm
High Range PH 8.2

11-14

Nitrate 5.0 ppm
Nitrite .25 ppm
Ammonia 1.0
High Range PH 8.2

11-17

Nitrate 5.0 ppm
Nitrite .50 ppm
Ammonia .50 ppm
High Range PH 8.2


Nitrite went up, Ammonia went down. That's normal right? Ammonia being converted into Nitrites?

Also, I must vent.... the test tubes are annoying cause when you shake them or invert them, water comes out through the lid... seems like the lids get loose after a couple uses. >< I don't know how much that would affect my test results..?
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post #22 of 34 Old 11-19-2008, 01:45 PM
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Yes, the dropping ammonia levels and increasing nitrites are a sign of the cycle progressing. Eventually the nitrite levels will start to drop and the nitrates will keep going up. Once the nitrites hit zero your tank is cycled.

I've had similar issues with the test tubes. I usually hold the tube between my fingers on bottom and top to put a bit more pressure on the top. I wouldn't worry about it affecting your results too much.

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post #23 of 34 Old 11-19-2008, 02:09 PM Thread Starter
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Lol, yea that's what I do to exactly, except the one where you have to shake for a 1 minute, I have a paper towel wrapped around the tube while I'm shaking to catch the drops, lol.
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post #24 of 34 Old 11-20-2008, 02:21 PM
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Quote:
Originally Posted by SolaceTiger View Post
Lol, yea that's what I do to exactly, except the one where you have to shake for a 1 minute, I have a paper towel wrapped around the tube while I'm shaking to catch the drops, lol.
LOL. That's what I do too with my nitrate test because it leaks a little. Just be sure to wash your hands well after testing. Those chemicals are not too good for you.

150 Gallon - Mostly American Cichlids
135 Gallon - Angelfish Community
75 Gallon - Odd couple (Polleni/Angelfish)
55 Gallon - African tank
20 Gallon Long - QT
10 Gallon - Empty
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post #25 of 34 Old 11-22-2008, 08:56 PM Thread Starter
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Second day tank setup 11-2

Nitrate 0 ppm
Nitrite 0 ppm
Ammonia 0 ppm - .25 ppm
High Range PH 8.0

5th day tank setup 11-5

Nitrate 0 - 5.0 ppm
Nitrite .25 ppm
Ammonia .25 ppm
High Range PH 8.2

11-8

Nitrate 5.0 ppm
Nitrite .25 ppm
Ammonia 1.0 ppm
High Range PH 8.2

11-14

Nitrate 5.0 ppm
Nitrite .25 ppm
Ammonia 1.0
High Range PH 8.2

11-17

Nitrate 5.0 ppm
Nitrite .50 ppm
Ammonia .50 ppm
High Range PH 8.2

11-22

Nitrate 5.0 ppm
Nitrite 0 ppm
Ammonia 0 ppm
High Range PH 8.2


Looks like it's verrry close to being done, if I should be waiting for Nitrates to escalate a bit more. I so badly want to do a water change and put my 3 blood fins in. I haven't done a water change the whole cycling process. Is it okay to do a water change now, and how much of a change should I be doing? Please reply promptly. xD
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post #26 of 34 Old 11-22-2008, 09:14 PM
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Looks like you're just about there! I would keep feeding your tank with your ammonia source and test for the next few days. If the ammonia and nitrites stay at 0 then your cycled. Then do a water change of maybe 25% but don't mess with the filter yet. Add the 3 bloodfins and watch your parameters closely for the next few days for any spikes.

150 Gallon - Mostly American Cichlids
135 Gallon - Angelfish Community
75 Gallon - Odd couple (Polleni/Angelfish)
55 Gallon - African tank
20 Gallon Long - QT
10 Gallon - Empty
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post #27 of 34 Old 11-22-2008, 10:40 PM
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With that pH, you could have a reef!
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post #28 of 34 Old 11-22-2008, 11:15 PM Thread Starter
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Nah, too lazy. xD
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post #29 of 34 Old 11-24-2008, 08:20 AM
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It looks like you're cycled. Your ammonia levels were never sky high so you're unlikely to see a huge spike in nitrates and that's not a bad thing. 20 days is right in the normal area for a tank to cycle. Since you're using decaying fish food it's hard to really "test" the cycle unless you want to keep adding food as normal and just see if everything stays as it is, except for the nitrates slowly rising.

Since your nitrates are fairly low I wouldn't worry too much about a big water change. Just use your gravel vac to give your tank a good cleaning and get up all the old decaying fish food and replace how much water that pulls out. If you want an exact number I'd suggest what I do, a 30% change which in your case is about 10 gallons.

Put in your fish and keep an eye on things the same way you'd keep an eye on them as if you were doing a fish in cycle. For a couple of days test the water daily for ammonia. If you see any then do a water change to get the levels back down and continue to monitor things.

In my experience a mature "cycled" filter can handle a pretty large increase in the bioload without ever seeing a mini-cycle. Last week I added 7 serpae tetras to my tank which easily doubled the bioload or better. I tested the water about every six hours for two days and never saw any increase in ammonia or nitrites. I've done the same thing each time I've added fish, though maybe not that religiously and I've yet to see a mini-cycle. Take that as you will.

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Watch my tank progress from Craigslist salvage to fishy habitat: Aaron's Tank
The only things that happen quickly in an aquarium are bad things.
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post #30 of 34 Old 11-25-2008, 12:50 PM Thread Starter
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Well, my nitrates went up more since 3 days ago. Nitrites and Ammonia are zero. Did a 30 percent water change and tested again, all was well. My fish from the 10 gallon are now exploring their new home. :) I hope they all do well, and eventually I will be adding 3 more bloodfins, 4 more red eye, and 4 more black skirts. Possibly some more otos to at some point, but I'm leaning more against that, just because I don't want them starving. I do like the idea of a bristlenose pleco... or a smaller pleco of the like. Can they do okay in 8.2 ph water if properly acclimated?
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