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PH Value

yahoohk

文章: 21

1 于 2003-12-30 16:36

I have tested the PH value for my FOT and noticed that it is consistently low at the level of around 7.9 to 8.0. I tried to use PH buffer to increase the ph value but was not successful. Do you have any idea how I can increase the ph value to a more reasonable level? I was told that the ph level for a salt fish tank should be around 8.4-8.5. Size of my tank is 40x20x30 and NO2 level is zero. Thanks in advance for your advice.

康仔

養仙魚，養仙魚

文章: 3576
來自: 港島東區

2 于 2003-12-30 17:05

Hi yahoohk,

With plenty fishes, FOT's PH value is usually comparatively lower that the 'optimal' value of about 8.2-8.3. It is completely okay if the PH is steady at this level. The PH value of my FOT is always at 7.9-8.0 and all the fishes are healthy. What is really harmful to fish is a rigorous fluctuation of PH (of 0.3 or up) over a short period of time, or an extremely lowe PH (say 7.6 or lower)

我的爛相簿

文章: 2537

3 于 2003-12-30 21:15

For low pH value, you can check 3 things:

1) High Co2 content can lower pH value. So check whether your air circulation/ water current level is high enough. Improve water current can imcrease air circulation and then pH value as well.

2) Change water more frequently to replace pH buffer that is included in your salt.

3) Add pH buffer. pH value may rise immediately but only after few days of adding pH buffer.

iwave

性愛島黃吊

文章: 2993
來自: 迷失性樂園

4 于 2003-12-30 23:56

i got the same problem. PH = 7.9~8.1

48"x24"x32" 上下滴溜FOT魚缸： 29.5~31度
UFO CLASSIC 150W 14000K x2 + 30W FL BLUE x2、IWAKI MX-70V-13上水泵、PINPOINT PH 錶、DE BARY 25W UV 殺菌燈 x2套、H&S150-F2001(850L 對應)化氮、SAGA ORP CONTROLLER、OZONE MAKER、大沙樽…

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