Topic: Help: PH=7.8

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Posted by: hkkelvinchoi
Posted on: 2003-06-16 13:32

本人開缸3個月,但是PH value 只有7.9. 昨天換水40%,用一個小型的水箱開鹽水,之後測試這個小型的水箱的PH(PH=8.2),然後換水,一個小時後,測試主缸的PH(PH=7.8),所以即時加了Seachem buffer,等了15min 後, 再測試主缸的PH(PH=8.3),所以安心地睡覺..
點知今天一早醒來,再測試主缸的PH, PH變回7.8, 請網友幫助 ?
1. 為什麼 PH =7.8 ?
2. 怎麼先可以提高PH value ?
Thank you very much
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Posted by: hkkelvinchoi
Posted on: 2003-06-16 13:33

本人開缸3個月,但是PH value 只有7.9. 昨天換水40%,用一個小型的水箱開鹽水,之後測試這個小型的水箱的PH(PH=8.2),然後換水,一個小時後,測試主缸的PH(PH=7.8),所以即時加了Seachem buffer,等了15min 後, 再測試主缸的PH(PH=8.3),所以安心地睡覺..
點知今天一早醒來,再測試主缸的PH, PH變回7.8, 請網友幫助 ?
1. 為什麼 PH =7.8 ?
2. 怎麼先可以提高PH value ?
Thank you very much

18"缸,沙底喉架 + AquaClear Mini power filter
2" sand
寶石花x1,奶咀葵x1,小丑x2,藍魔x1,青魔x1,醫生蝦x1,寄居蟹x2.
NH3=0,NO2=0,NO3=20, Temp=26 degree
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Posted by: Aris
Posted on: 2003-06-16 16:11

Hi hkkelvinchoi ,

Did you try to use air pump to increase air in water?
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Posted by: LC
Posted on: 2003-06-16 21:25

應想想為甚麼酸性的物質會積在你的魚缸，
令魚缸水變酸的物質主要是CO2、生物的排泄物、
剩下的食物和生物死亡：

CO2高 - 應增強水流，讓溶氧量增高，加快CO2的揮發，可考慮加潛水泵和生物球。
生物的排泄物高 - 可考慮減少生物、加強過濾或加skimmer
剩下的食物過多 - 減少餵食
生物死亡 - 活石是否已複原？和死了的生物應即時移走。
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Posted by: hkkelvinchoi
Posted on: 2003-06-17 09:14

How to know Co2 is too high?
Thanks
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Posted by: 白熊
Posted on: 2003-06-17 11:47

我個四尺缸以前又係咁, 成日PH都係得7點幾, 加完鹼好快又還返原, 原因係4 尺缸有拾幾條3寸既魚, 加得又快, 餵得又多, 化氮器又"雞", 又乜都唔識, 又乜又物.......:(
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Posted by: panitane
Posted on: 2003-06-17 19:40

白熊兄：
後來用甚麼方法改善
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Posted by: LC
Posted on: 2003-06-17 20:39

hkkelvinchoi ，KH高但pH低。
若是因為CO2高，可試加強水流，pH便應上升。
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Posted by: mcnelson
Posted on: 2003-06-18 01:00

加PH藥水5-6mL睇一晚 Law
及減少或停餵一晚
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Posted by: Kenny
Posted on: 2003-06-18 10:57

Do you have a skimmer? If not, just add a skimmer in your tank, it is helpful; if yes, maybe you need to buy a air pump for support. Adding dead coral or crushed coral is also helpful (I mean the real dead one).
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Posted by: 白熊
Posted on: 2003-06-18 11:07

panitane wrote:
白熊兄：
後來用甚麼方法改善



養少D, 餵少D, 換化氮, 加設備....:D
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Posted by: 藍面仔
Posted on: 2003-06-21 22:23

我的缸有二個潛水泵, 一個skimmer, 600 L 水 只有20條小魚, 日餵兩餐, 但ph長期在7.4, 何解?
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Posted by: LC
Posted on: 2003-06-21 22:33

藍面仔：可勤換水或試加buffer。
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Posted by: eddi
Posted on: 2003-06-22 10:38

hi hkkelvinchoi
add air pump
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Posted by: 藍面仔
Posted on: 2003-06-23 20:05

Dear LC,
Could you let me know what the buffer is in chinese?
Canb I increase the PH level by adding an air pump as I have no in my tank at present?
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Posted by: LC
Posted on: 2003-06-23 20:24

Buffer is a kind of chemical that can increase the capacity of tank water to resist drop in pH, e.g. Kent Marine Superbuffer-dKH ($35).
Buffer has no Chinese translation but ?緩沖劑 is appropriate.

I think air pump is not more useful than your two powerheads in increasing air circulation and therefore pH as well.
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Posted by: 藍面仔
Posted on: 2003-06-24 13:50

Dear LC,
Thank you very much for your advice and suggestion
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