Tank Cycling Process

[Ozric]

Hello Everyone

Does this look like a tank that is cycling ok?

TANK CYCLING PROCESS


04/03/04 : Tank was setup and filled with declorinated water and left for one week.

11/03/04 : Added 3 Zebra Danio's to the tank

DATE DAY PH AMMONIA NITRITE NITRATE

11/03/04 1 8.5 0.0 MG/L 0.1 MG/L 12.5 MG/L

13/03/04 3 8.5 0.0 MG/L 0.1 MG/L 12.5 MG/L +

15/03/04 5 8.5 0.0 MG/L 0.1 MG/L 12.5 MG/L

17/03/04 7 -8.5 0.0 MG/L -0.1 MG/L 12.5 MG/L

(15-20 %
Water Change
17/03/04 2ND 7 -8.5 0.0 MG/L -0.1 MG/L -12.5 MG/L
Test)

18/03/04 : Added 4 Guppy's to the tank

19/03/04 9 8.5 0.0 MG/L -0.1 MG/L 12.5 MG/L

21/03/04 11 8.5 0.0 MG/L -0.1 MG/L 12.5 MG/L

24/03/04 14 8.5 0.0 MG/L -0.1 MG/L 12.5 MG/L

(15-20 %
wATER cHANGE
24/03/04)

24/03/04 : Added 4 Neon Tetras,1 Dwarf Gourami (Male),2 Albino Catfish

25/03/04 15 8.5 0.0 MG/L 0.1 MG/L 12.5+ MG/L

25/03/04 : Added 1 Dwarf Gourami (Female)


Thanks for your help


Ozric

 

[modernhamlet]

I'm going to take a shot in the dark and say the test kit got hosed up somehow. Are you testing with strips or drips?

 

[G_Sharky]

If your using Ammo-lock then there's a chance that these results are inaccurate, but if your not then the tank is indeed on the cycling progress and it's not done. Never add any fish until A&N hits 0 and stock slowly, maybe a couple of fish after your tank finished it's cycle

 

[Bol]

First thing: Test your tap water.

I wouldn't be surprised if it tests at 12.5 ppm nitrates (note you had no change in nitrate levels after a 25% water change), and you may find it tests for 0.1 nitrites, too.

If so, you either have a bad test kit, or have nitrites in your water (seems highly unlikely to me) and/or nitrates in your tap water (more likely, but still unusual).

Outside verification of your test kit (maybe have a LFS test your water?) could help narrow down the problem.