Coralife 18W - 鬧市冰室

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Coralife 18W

arowana

文章: 1324

16 于 2003-01-01 22:38

wwlworld兄：你的缸幾大？我200L水用9W唔知夠唔夠呢?

wwlworld

文章: 532

17 于 2003-01-02 18:21

Click to see my tank

I feel that 9W is not enough for 200L tank. It is okay for killing algae, but I don't think it is enough to control disease. 9W is okay if used in quarantine tank I think.

cheng1007

文章: 22

18 于 2003-02-10 23:59

To wwlworld,

Pls, why you said that (主缸盡量唔希望冒險) from point 5 you wrote above?
I wonder If it would be harmful to the N-cycle or others?

Because I am considering it to conquer the white spots

Is it right?
My FOT is 120L, how large ?W should I take?
How much from H.K. or China? Thks a lot!!!

wwlworld

文章: 532

19 于 2003-02-12 22:59

I have just reinstalled everything in my PC and just cannot type Chinese yet.

I have no idea how much the price difference between HK and the PRC. However, some hobbyists have found out that the 9W model is RMB240 in the PRC. ( I have no idea where that shop is) Please refer to hksaltfish.com and someone has mentioned it somewhere (use 'search' function in that forum).

Regarding point 5, it is because I have a quarantine tank. I will first quarantee new fish before transferring them to the Main Tank. Because I have a secondary tank (q-tank), there is no reason for me to risk putting new fish directly into the main tank.

I have written something about UV in hksaltfish and it is only my opinion. Again, please search the article. The volume of water is much much more in the main tank than in the q-tank, therefore in simple term, UV is much more useful if used in the q-tank. I shall say no more about this.

Any bacteria / living passes through UV would be killed. However, there is very little bacteria in the water and most of which dwell in the sand, bio-ring, rocks and UV cannot reach them. Don't worry!

If 120L is your tank, you can buy the 9W model which is HK$390. However, the slower the water flow rate the more efficient the sterilization. I would recommend a flow rate of no more than 500L/hour. (just my opinion)

Lastly and repeatedly, UV is most effectively if used in quarantine tank. The reason of me using a 18W UV in the main tank is to kill algae (it is doing a great job). However, I also have another 9W UV in my 30L quarantine tank and I really rely on it to quarantee new fishes there. I have also posted pictures of my KEMA 9W UV in this forum. Please look for it.

12345678

JUST DO IT..........

文章: 1032

20 于 2003-02-14 14:43

12345678 wrote:

wwlworld wrote:
Standard price: 9W $390 18W $690
use Philips lamp

响GZ芳村一模一样的9W开价才RMB280
250应该可以拿到啦
我都想买啊可惜现在没RMB
好吾好用啊

滴起心肝买左支9W，RMB230

wwlworld

文章: 532

21 于 2003-02-15 01:07

12345678

I have just reinstalled all software in my PC, however, I have not installed Chinese input yet so I cannot type Chinese.

Coralife is good and I found it quite useful. I only use it to kill algae and it does the job nicely.

I understand that your tank is 40" large, I feel that both 9W and 18W UV are not enough for your tank to combat diseases. I would suggest 25W or higher. However, if you only want to kill algae, 18W is OK.

Also, if you connect 18W UV to your Iwasaki pump, the flow rate is too fast.

joseph

文章: 142
來自: Ma On Shan

22 于 2003-02-24 23:04

我現在用緊銀行用的紫外光燈直接射落缸到，發覺能夠殺死D白點病，一關了一兩日，白點病又好似想出返來，是否有這用途呢? 只開夜晚......

小明

文章: 37

23 于 2003-02-26 21:09

小弟買了一個9W的，
但是應用什麼喉管接掇，
邊道有得買和幾錢，
我試過用普通的水喉，
但太硬和容易leak，
而且潛水泵和UV light 的接口大小又不一樣......
希望各位高人指教。

wwlworld

文章: 532

24 于 2003-02-27 11:29

Joseph,

What you have is merely a color lamp, not exactly a UV.

The observation that ich had gone away with the lamp being on perhaps is merely a misconception.

UV is entirely a different thing. It is a stand alone device that water passes through it and being sterilized by a UV lamp.

A true UV emits invisible-to-eye wave lenght of (if I am correct) 253nm that will alter the DNA of bacteria of all kinds. Because this invisible light is so damaging to any organism including human eye and skin, it will never be used to shine directly. The lamp must be conceal within a certain compartment.

lee5993

真正的慈悲，就是放下

文章: 91

25 于 2003-03-07 11:37

深圳荔枝公園9w賣價$109人仔....用左個幾月..正常.

lee5993 修改于 2003-03-07 11:39

mrfong

我有兩隻馬騮

文章: 1935
來自: 天水圍

26 于 2003-03-07 12:03

係真唔係呀！12345678話廣州都要賣230喎！

會唔會係老番or二手嘢？

12345678

JUST DO IT..........

文章: 1032

27 于 2003-03-11 12:59

wwlworld wrote:
12345678

I have just reinstalled all software in my PC, however, I have not installed Chinese input yet so I cannot type Chinese.

Coralife is good and I found it quite useful. I only use it to kill algae and it does the job nicely.

I understand that your tank is 40" large, I feel that both 9W and 18W UV are not enough for your tank to combat diseases. I would suggest 25W or higher. However, if you only want to kill algae, 18W is OK.

Also, if you connect 18W UV to your Iwasaki pump, the flow rate is too fast.

我个缸200L吾到喳,吾计滴漏得90CM长

JACKAL WONG1970