想問,屋企魚缸d 魚點解咁快升天....

希望你睇完樓上o既答案後，仲有興趣睇我呢ｄ，然後再睇埋我對o個ｄ答案o既意見。
圖片參考：http://hk.yimg.com/i/icon/16/10.gif

首先，死魚可以好多原因，先睇睇你有冇做左ｄ唔妥o既o野：
１．１１條魚係乜野魚毛？新手大忌係立亂買魚，唔知魚性結果買埋藍斑馬、小王子呢ｄ惡魚；九角龍呢類食魚仔o既魚；仲有會大到成尺長o既琵琶。買魚前研究清楚，可以去討論區問下人，或上網／睇書搵下資料，千祈唔好問售貨員，多數撞板。
２．買o左袋裝魚？定o係缸撈？袋裝魚一般死亡率高，因為你唔知佢入左袋幾耐，剛入袋都可能係一有貨到就即入，舟車勞頓，身體係會差ｄ。所以最好唔好買袋裝魚，特別係個袋冇乜氣，水唔清，魚唔精神o個ｄ。就算唔係，新魚有病，會搞到成缸瘟疫，所以買魚要揀清楚，摺埋鰭／尾，同缸有死／病，身上有爛尾／鰭／白點／一舊發霉狀白色物體／身上一片白左色／魚眼浮腫，都要忍手唔好要。
３．新缸買返o黎後要先浸水日，等污物同玻璃膠氣味等溶入水中，抽走哂再入水。水可以用除氯劑或打氣（或由得缸水過夜），等氯氣清除。濾水器呢個時候可以開始長開，水會自然變得白濁，但幾日至個幾星期就會自然清返（視大小而定）。咁即係硝化細菌開始生長同其化微生物開始減少，咁就可以開始入魚。
４．買左魚後，要原袋放入缸五至十分鐘，等袋中水溫同魚缸水一樣。呢個步驟叫做對溫。然後，可以先倒去袋中部份o既水（如倒到剩返四份一袋，但當然要視乎袋size 同魚o既數目），再慢慢加入魚缸水，加完隔五分鐘再加ｄ，等魚適應魚缸水質。呢個步驟叫做對水。加到係原袋水o既約三倍，然後將魚撈出入缸，袋水唔要，以免有病菌。
５．不能太多魚。如果你養十一條魚，你個缸點都要有近一尺啦卦。
圖片參考：http://hk.yimg.com/i/icon/16/26.gif
仲要逐少加，一次加太多，硝化菌處理唔到咁多廢物，ｄ魚會俾排泄物中o既廢毒素毒死，所以每次一兩條，俾時間細菌繁殖。
６．濾水器中o既濾材（主要係生物環），就係俾硝化菌落腳o既地方，所以濾水器係必備器材，而其水泵流量要有個缸容量六倍左右。另外，氣泵同暖管（熱帶魚冬天要維持約２５度水溫）都係。
好，答你o個幾條問題先：
１．換水三日一次好足夠，除非你冇濾水器同個缸極細（如四五寸）啦。
２．買魚品種點揀，上面已提及，最主要係品種唔會大到你個缸容納唔到，性格唔會唔相容。如果你用中性水養，其實乜魚都可以ｏｋ啦。
３．魚唔駛日日餵，隔日都可以，每次三至五分鐘食得哂就得；如果缸細魚多，更加要小心唔好餵過量，因為食剩或食得多痾得多，都令水質惡化。

2007-10-18 13:35:38 補充：
《補充》換水三日一次夠，但如果可以一星期一次啦。換水量三份一就足夠。意見：１．you should add some seaweeds ( Sea Grass)＞香港冇乜人種「海」草，只係（淡）水草。魚ｂ都用得草o既，但係草唔夠光同co2都係等枯，令水質變差。而養水草器材多，恐怕唔係你杯茶。２．Sand can get the dirty things out ＞屎沉澱入缸底o既砂度由硝化菌處理，亦令水流冇咁易沖起ｄ屎。屎唔會被砂 get out。

您齊唔齊工具先?
缸水未換前要放一至兩日到先好換落個缸到呀,如果齊工具都可以一星期換一次水
每次三分一到, 如果唔齊工具, 好似濾水, 氣泵等就要三四日污糟就要換啦, 因為魚過
頭食完野就好快痾出黎, d屎係有毒架

一袋袋既細魚仔係好難養架如果唔齊工具, 一次11條可能係唔夠氧氣, 我之前養過一次
四十幾條, 第二日就無左十條啦

隔日餵都ok既, 因為您個d係魚毛仔, 唔好太多, 魚係唔識飽既

Q :我養左無耐...加加埋埋都係3日左右,買左11條返黎,升天已經有4條...
A:Hi, I am Derek Tong, your fish will died, i think the main reason is that your fish aren't in a comfortable place. For my experience, if you have some baby fish, you should add some seaweeds ( Sea Grass), these can provide enough oxygen to the baby fish. And you should add some sand to the bottom of your 缸. Sand can get the dirty things out and make the water cleaner.
1)缸水幾時換一次?
If you have sand in the bottom of the缸, you should change the water once per 2 weeks, but remember, only take out 1/4 water, so that the fish will not need to have a new enviournment.
2)應該買咩野魚比較好
I suggest that you should try to buy some fish which do not need a high quality of enviounment, such as Gold fish. It's a good practise for you how to keep a group of healthy fish.
3)餵魚食野幾耐一次?
For me, I feed my fish twice a day, they are not only eat the fish food, the also eat some seaweeds in the缸. Some times, you can feed them with some prawns, fish food.

Hope that my opinion can help you.