[問題] pH值4.5X對水草嚟講會唔會太低左D?

theodore.kwan · **註冊時間:** 2006-08-19 01:06 **文章:** 233

小弟個草缸24吋
今日pH值本身得4.5x，頭先換左水，升至6.14
想問吓咁多位c兄，pH值咁大波動對水草影響大唔大?
另外，pH值4.5X對水草嚟講會唔會太低左D?

theodore.kwan · **註冊時間:** 2006-08-19 01:06 **文章:** 233

有冇邊位C兄答到小弟

danielpwr · **註冊時間:** 2007-08-11 00:35 **文章:** 17

點解你啲水咁酸? 我今日我加咗啲珊瑚沙,pH 由5.0 升到 6.5

alexkwok55 · **註冊時間:** 2005-11-06 15:35 **文章:** 250

你用乜o野泥呀？就算ADA黑泥都應該係5.5度，4.5就奇喇？！其實你慢慢換多幾次水乜泥的PH都會自然標高，無須添加任何o野。

snowing · **註冊時間:** 2006-10-04 02:05 **文章:** 176

4.5--->6.14 波動係好大...對魚對草都唔好
下次換水要少少咁換喇....同埋你d係黑定紅泥?!?!

[quoted] danielpwr: 點解你

theodore.kwan · **註冊時間:** 2006-08-19 01:06 **文章:** 233

[quote="snowing"]4.5--->6.14 波動係好大...對魚對草都唔好
下次換水要少少咁換喇....同埋你d係黑定紅泥?!?!

[quoted] danielpwr: 點解你

Andy Kong · **發表於 :** 2007-08-30 18:16

如已回升便不用理會了，你是用什麼度 pH 的？

德康 · **發表於 :** 2007-08-30 22:02

我用白沙都係4.5, 係用PH999Meter量度的,
我都想問, 咁低PH, 對魚和草有無問題?

Andy Kong · **發表於 :** 2007-08-30 22:32

德康寫:

我用白沙都係4.5, 係用PH999Meter量度的,
我都想問, 咁低PH, 對魚和草有無問題?

用白沙都係4.5？你 calibrate 過枝 PH Meter 未？

德康 · **發表於 :** 2007-08-30 23:20

Andy Kong 寫:

用白沙都係4.5？你 calibrate 過枝 PH Meter 未？

不久之前校準過, 用喺草缸則為5.5-5.8 (該草缸用ADA泥及狂打CO2),
但用喺白沙缸則為4.5, (想請問, 咁低PH, 對魚和草有無問題?)
因驚對魚和草有害, 之後用黃沙換白沙, 再狂換水天天1/3, 現在PH6左右,
然則該白沙是否可作為控制PH的另一選擇呢?

erichylai · **發表於 :** 2007-08-31 00:24

Should really avoid sudden change in pH. While 4.5x to 6.14 sounds like a little increase, it's big difference in pH terms. pH 4 is 10 times more acidic than pH5, 100 times more acidic than pH 6. See below link:

http://www.elmhurst.edu/~chm/vchembook/184ph.html

You don't want to be the fish or plant inside a tank which pH jump like that.

theodore.kwan · **註冊時間:** 2006-08-19 01:06 **文章:** 233

erichylai 寫:

Should really avoid sudden change in pH. While 4.5x to 6.14 sounds like a little increase, it's big difference in pH terms. pH 4 is 10 times more acidic than pH5, 100 times more acidic than pH 6. See below link:

http://www.elmhurst.edu/~chm/vchembook/184ph.html

You don't want to be the fish or plant inside a tank which pH jump like that.

呢點我都聽過所以都心寒

我個ph計係問朋友借嘅, dazs貨

Andy Kong · **發表於 :** 2007-08-31 16:08

theodore.kwan 寫:

erichylai 寫:

Should really avoid sudden change in pH. While 4.5x to 6.14 sounds like a little increase, it's big difference in pH terms. pH 4 is 10 times more acidic than pH5, 100 times more acidic than pH 6. See below link:

http://www.elmhurst.edu/~chm/vchembook/184ph.html

You don't want to be the fish or plant inside a tank which pH jump like that.

呢點我都聽過所以都心寒

我個ph計係問朋友借嘅, dazs貨

ph計如果枝 probe (筆) 在轉運過程中有離水，建議你用 ph7 和 ph4 標準測試劑校過才用，無 calibrate 好的話個 pH meter 不可儘信。 DAZS 的 pH 錶準確情度亦有限， Sera 和 Saga 等較可信標，但呢D 牌子的 meter, 換枝 probe 都 $3xx. 貴過大陸貨成套新錶，分別可想而知！

theodore.kwan · **註冊時間:** 2006-08-19 01:06 **文章:** 233

一分錢，一分貨

Andy Kong · **發表於 :** 2007-09-01 10:16

theodore.kwan 寫:

:-n05
十分錢，一分貨

何以認為是十分錢，一分貨？你咁講的意思是又貴又唔準喎，言下之意是 Sera/Saga 比 Dazs 貴但反而無 Dazs 咁準？

水草情迷

[問題] pH值4.5X對水草嚟講會唔會太低左D?

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