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未閱讀文章發表於 : 2005-06-21 12:40 
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註冊時間: 2004-05-23 10:37
文章: 341
來自: h.k
近排水草店 老細 推介個沙樽,台灣出既,有大有細,大蓋百幾至二百幾蚊不等,而分別用左一個缸有, 一個缸冇, 而一個有加左,我眼見 :-n04 真係特別清好多喎,而令一個缸就真係相差好遠,個時我都有d沖動想買,不過帶不教錢,冇買到.想問各位草兄,個沙樽係唔係咁勁令d水咁清禁多,如果用兩個瀘埇又可做到ma,值唔值得一買a..thx.... :c


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未閱讀文章發表於 : 2005-06-21 13:42 
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註冊時間: 2004-05-02 16:44
文章: 17
I have used 沙樽 before, but now removed it already.
沙樽 is a good product for bacteria, it is really simple, cheap and need not to maintain, the surface area is lareger than any kind of Bio Ring even PH bio ring. So, NH3 can change to NO3 rapidly. Water will turn very clear in a limited of time. but be caution, 沙樽 can only change the form of waste to less toxic form(NO3) but not remove it. You still need to remove it by change water. And high No3 can enchance the grow of algae(Sorry i forgot what kind but seem like brown algea)

It seem good for Fish tank

But in plant tank, Plant perfer NH4 rather than No3. Actullay, plant also a bio filter in tank and it can remove organic waste rather than change it. Some people even use no filter in their highly planted tank, just let the plant to do all filter work.

For my point of view, if you tank is high fish density, 沙樽 is good, cheap and effective filter, but it high plant density tank, need not 沙樽

One more point, 沙樽 is good Co2 dissolver>>>
Just connet co2 to "In" tube of 沙樽. So,the higher of 沙樽, the more effective of dissolve of CO2


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未閱讀文章發表於 : 2005-06-21 14:03 
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註冊時間: 2004-11-05 15:31
文章: 1263
Cat 寫:
I have used 沙樽 before, but now removed it already.
沙樽 is a good product for bacteria, it is really simple, cheap and need not to maintain, the surface area is lareger than any kind of Bio Ring even PH bio ring. So, NH3 can change to NO3 rapidly. Water will turn very clear in a limited of time. but be caution, 沙樽 can only change the form of waste to less toxic form(NO3) but not remove it. You still need to remove it by change water. And high No3 can enchance the grow of algae(Sorry i forgot what kind but seem like brown algea)

It seem good for Fish tank

But in plant tank, Plant perfer NH4 rather than No3. Actullay, plant also a bio filter in tank and it can remove organic waste rather than change it. Some people even use no filter in their highly planted tank, just let the plant to do all filter work.

For my point of view, if you tank is high fish density, 沙樽 is good, cheap and effective filter, but it high plant density tank, need not 沙樽

One more point, 沙樽 is good Co2 dissolver>>>
Just connet co2 to "In" tube of 沙樽. So,the higher of 沙樽, the more effective of dissolve of CO2
完全同意。 :-n05


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未閱讀文章發表於 : 2005-06-21 14:06 
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註冊時間: 2001-10-11 08:00
文章: 2592
來自: Europa
100% agree with it too! IMHO, even with a fish only tank, if you need a 沙樽, you're probably overstocking anyway.


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未閱讀文章發表於 : 2005-06-21 14:29 
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註冊時間: 2003-09-25 14:11
文章: 193
Something not the truth actually. Plant never absorb organic waste and NH4 + directly. Sand provide a lot of surface area for oxygen absorbing bacteria for growth and change organic waste, NH4 to No3- finally. Nothing can replace this function. NH4+ and No2- are toxic for fishes. All people keeping fish tank is trying to keep this two thing as low as possible. Using which material as filter will not remove No3- eventually, it will only affect the totally surface area providing for the bacteria.


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未閱讀文章發表於 : 2005-06-21 14:45 
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註冊時間: 2003-09-25 14:11
文章: 193
one more thing. Bacteria growing into the sand bottle is oxygen favouring. It needs a lot of oxygen to oxidize organic waste into No3-. Pumping CO2 into the bottle will reduce their growth and oxidizing efficiency


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未閱讀文章發表於 : 2005-06-21 15:47 
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註冊時間: 2004-07-04 23:18
文章: 2012
來自: 長沙灣
我個草缸係用砂種草,我都有用沙樽,我對佢的評價~d沙不停地滾動,對水中的細微[便便]有去除的功效,但這不是一時三刻可見的效果!!另我有用co2溶入[沙樽]內先出水,d水ph都好穩定(6.4--6.8),but可以養菌類!!都不錯!! :-n05

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一切從心便是美...便是自己!!amencheng1113@yahoo.com.hk


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未閱讀文章發表於 : 2005-06-21 17:24 
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註冊時間: 2001-10-11 08:00
文章: 2592
來自: Europa
Please take a read on Ecology of the Planted Aquarium which I recently got public libraries imported a few, most aquatic plants (all territerial plants) take ammonium instead of nitrate as preferred source of nitrogen because it takes less energy to reduce into nitrogen, some types of crypts don't even take NO3 as the nitrogen source.

That's why some people don't even bother to cycle a planted tank, and some manage to go without a filter.


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未閱讀文章發表於 : 2005-06-21 17:47 
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註冊時間: 2004-05-02 16:44
文章: 17
hi Jackyim

For my limited Biology knowledge, NH3, Nh4+, no2, no3 is water plant source of nitrogen. and they perfer ammonia rather than nitrate. :j

So i think plant is a good waste remover in fish tank, and if you place MOss in high ammonia tank, they grow beautifully.

Hope you can provided more information on this aspect
:-n05


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未閱讀文章發表於 : 2005-06-21 23:15 
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註冊時間: 2004-05-23 10:37
文章: 341
來自: h.k
好似幾好喎,我會諗下買..唔該大家... :-n06


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未閱讀文章發表於 : 2005-06-22 09:54 
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註冊時間: 2004-05-02 16:44
文章: 17
Forget to remain you one important thing, if 沙樽 stop for a while (such as no electric, exhange water), the bacteria will die easily and release toxic substance. When 沙樽 start again, all the toxic substance will flow to the tank. Your lovely fish will............. :m

Somebody said it can last for 1 hour, 2 hour even 3 hour. for me, if i stop 沙樽 for more than 45 mins, i will wash all sand.

If you buy, remenber to buy one with the device to pevent "black flow" because it will easily clog if no such device. I know "chang lai" "rusan" and "Azoo" have such device but Otto does not.

hope the informationo is useful for you


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未閱讀文章發表於 : 2005-06-22 14:37 
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註冊時間: 2003-09-25 14:11
文章: 193
Hi Cat,

It is good we can discuss here. Do you change your water in your plant aquarium containing fishes and why? If you said plant can remove all waste without filters, it is already self maintaining system. Why we need to maintain changing water into our fishes tank?


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未閱讀文章發表於 : 2005-06-22 17:39 
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註冊時間: 2004-05-02 16:44
文章: 17
You may misunderstood my point, if in a HEAVILY planted tank and the fish waste output equal to input of plant , plant can be the only filter in tank. But most of us like to keep more fishes than plant can support. so we need filter. But plant can remove fish wast is true.

Other than remove waste, change water can add trace element to our tank for plant


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未閱讀文章發表於 : 2005-06-23 21:12 
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註冊時間: 2001-10-11 08:00
文章: 2592
來自: Europa
http://www.aquabotanic.com/plants_and_b ... ration.htm

Some digested reading if you don't want to borrow the book from library.


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