What's new

Fishless Cycle Log

fatheadminnow

Fish Aficionado
Joined
Jan 14, 2009
Messages
4,815
Reaction score
14
Points
38
Location
US
Well, I am back in college for the year and I have decided to get a 10 gallon fish tank for my dorm.

Like I said, it is a 10 gallon tank, and I have an AquaClear 20 filter with a little bit of mature filter media from my 55 gallon tank back at home, just to give it a kick start!

I thought it would be fun to have a log of the progress of my cycle, just for beginners to get an idea of fishless cycling.

College tank, 10 gallons, pH 7.6, AquaClear 20 filter, Temp 78 +/- 2 degrees, using 10% ammonia, start date 9-20-09

====================
9-20-09
Day 1
Ammonia - 5ppm
Nitrite - 0ppm
Nitrate - 0ppm
====================
9-21-09
Day 2
Ammonia - 5 ppm
Only going to test at 24 hours unless I see a significant drop in ammonia, then I will start to test at 12 hours.
====================
9-22-09
Day 3
Ammonia - 4 ppm
====================
9-23-09
Day 4
Ammonia - >4 ppm? I almost want to say 3 ppm, but not quite sure. The color seems to be in between 2 and 4 ppm?
Well, I was curious to see if the ammonia was actually dropping, so I tested for Nitrite, even though I said I was not going to. I could not help it!
Nitrite - .25 ppm!
====================
9-24-09
Day 5
Ammonia - 3 ppm
Nitrite - 0 ppm
Nitrate - 0 ppm
====================
9-25-09
Day 6
No Readings Taken
====================
9-26-09
Day 7
No Readings Taken
====================
9-27-09
Day 8
Ammonia - 2-3 ppm?
Nitrite - 0 ppm
Nitrate - 0 ppm
Weird?
I added a large amount of mature filter media from my 55 gallon tank. If the ammonia I am using is not bad, or if there is something not right with my water, I would suspect that this new filter media almost be enough to cycle my tank within a week. If the ammonia level does not drop here in a couple days, then something is wrong with my water? I am hoping for a large drop in ammonia on day 9 and a nice nitrite reading. It just makes no sense why I had a nitrite reading back on day 4, and then no progress from there. pH is now around 8.8+, this is concerning me a bit.

Well, I just did a 50% water change to lower the pH level. In about an hour I will test the ammonia and pH level. I will then add up to 4-5 ppm of ammonia.

Ammonia - 4 ppm
pH - 7.6-8.0

===================
9-28-09
Day 9
Ammonia - 4 ppm
Nitrite - 0 ppm
===================
9-29-09
Day 10
Ammonia - 4 ppm
Nitrite - 0 ppm
===================
9-30-09
Day 11
Ammonia - 4 ppm
Nitrite - 0 ppm
pH up to 8.2 now
===================
10-1-09
Day 12
Ammonia - 2-3? ppm
Nitrite - 0 ppm
Nitrate 5 ppm
===================
10-02-09
Day 13
No test taken
===================
10-03-09
Day 14
No test taken
===================
10-04-09
Day 15
Ammonia - 2-3 ppm
Nitrite - 0 ppm
Nitrate 5+ ppm?
===================
10-05-09
Day 16
No Test Taken
==================
10-06-09
Day 17
No Test Taken
==================
10-07-09
Day 18
Ammonia - 1 ppm :hyper: Finally!
Nitrite - Weird color? Maybe between 0 ppm and .25 ppm, but really close to .25 ppm?
Nitrate - Darker than 5 ppm but lighter than 10 ppm. Probably around 7 ppm.
pH - 8.0 as of right now
==================
10-08-09
Day 19
Ammonia - .75 ppm
Nitrite - .25 ppm
Nitrate - >10 ppm
==================
10-09-09
Day 20
Added Ammonia back up to 5 ppm
==================
10-10-09
Day 21
No Test Taken
==================
10-11-09
Day 22
pH - 8.3
Ammonia - 2 ppm
Nitrite - 1 ppm
Nitrate - 10+ ppm
==================
10-12-09
Day 23
Ammonia - 1.5 ppm
Nitrite - 1+ ppm
pH - 8.2
==================
10-13-09
Day 24
Ammonia - 1 ppm
Nitrite - 1 ppm
Nitrate - 20 ppm
pH - 8.0 - 8.2
==================
10-14-09
Day 25
Ammonia - .75 ppm
Nitrite - 1 ppm
pH- 8.2
==================
10-15-09
Day 26
Ammonia - .50 ppm
Nitrite - 1 ppm
pH - 8.4

Added ammonia back up to 5 ppm
==================
10-16-09
Day 27
No Test Taken
==================
!0-17-09
Day 28
No Test Taken
==================
10-18-09
Day 29
Ammonia - 1.5 ppm
Nitrite- .5 ppm
Nitrate - 40 ppm
Added another large amount of Mature Filter Media to inlet of filter.
==================

-FHM
 
Gee, this is fun :shifty:
 
Wow, a bacterial bloom.... never had that in a while! lol :lol:

It's a good sign though! Since my water is safe for bacteria to grow, then it's safe for fish! :hyper: When it's cycled... lol

-FHM
 
It has been a few days since the last update. How is the pH doing? Is it staying down this time or do we need to start exploring your decor and substrate?
 
It has been a few days since the last update. How is the pH doing? Is it staying down this time or do we need to start exploring your decor and substrate?
pH has stabilized right at 8.0. It has been for the last couple of days.

Thanks OM!

-FHM
 

Most reactions

Back
Top