Bethk's Cycle Diary - 18Ltr Tank

[BethK]

This is a fish-cycle, the pH is exactly the same as non-treated tap water, 8.

21st April

18 ltr

Temp - 25c
Ammonia - 2.0
pH - 8


22nd April


Temp - 25c
Ammonia - 2.0
pH - 8


23rd April

Temp - 25c
Ammonia - 2.0
pH - 8
Nitrate - 0.40
NItrite - 3


24th April

Temp - 25c
Ammonia - 4
pH - 8
Nitrate - 0.40
Nitrite - 1

25th April - 1 fish added

Temp - 26c
Ammonia - 0
pH - 8
Nitrate - 0.20
Nitrite - 0

26th April

Temp - 26c
Ammonia - 0
pH - 8
Nitrate - 0.20
Nitrite - 0

26th April

Temp - 26c
Ammonia - 0
pH - 8
Nitrate - 0.10
Nitrite - 0

 

[BethK]

I did a complete water change yest and took out the gravel, replaced with sand substrate.

 

[waterdrop]

OK (came here from your other -fishless- cycle) it looks like your substrate changing process also helped you get the ammonia and nitrite down to zero for the weekend. You'll now need to monitor it and establish a pattern of water changing that keeps the ammonia and nitrite(NO2) below 0.25ppm on an ongoing basis through the fish-in cycling (takes a month or so usually.)

~~waterdrop~~

 

[BethK]

okies, thanks x