mingjkli 寫:
我今日去左金魚街問下個價錢，2217或者2026都要過千銀！Teco TR5要HKD2200，咁個售貨員就介紹JBL有隻濾桶好抵用，900L/hr果隻都係HKD540，佢又話係德國貨，但唔知點解同EHEIM價錢差咁遠？會唔會係大陸貨？請問要幾多lit/hr先推到TR5？Yes, Eheim is the most expensive one but it's trouble-free. It worth the buck. If you have budget concern, you may take Atman. It's made in China. If you're going to have a chiller, I'd choose cf-1200. You know, the flow rate specified by the manufacturer is not reliable. For Atman, I'll take as much as 50% discount of the listed rate.
另外我見有一間賣水草店佢放左隻小型電子溫度針係個草缸度，我好奇睇下水溫有28.5度，我留意個草缸都係主要種迷矮、珍珠同六角苔，都種得好好喎！但我自己毎缸D珍珠草雖然無水冷，但每日都放冰罇都Keep到26至28度，就一日衰過一日，所以忽然想起果4支24W的T5管，近日發覺開左成7,8個鐘都無乜氣泡上，我估計會唔會有問題，而其他草都生得唔係咁好！但果4支管都係用左9個月咋，會唔會D光管有問題？CO2大約一秒一粒，不過近日又發現黑毛藻，可能要加番大D CO2先得，而家都KEEP住一個星期換水1/3，請大哥俾D意見，有無邊隻T5管耐用D？No way, something must be wrong. 25c is the ideal temperature for a planted tank. In my experience, at the time I did not have a chiller, my temperature was 28c. All the 珊瑚莫絲 died and other plants were not in good condition. There are thousands of reasons why there are no bubbles. A few points for your consideration:
1. Are your tubes of 6500K, e.g. Philips 865?
2. Your CO2 supply is too low. 2 bubbles per second is the bare minimum. I have 3-4 bubbles per second for my 24"x12"x14" tank.
3. You water condition may not be good enough. Try to change 1/3 each alternate day.
4. How long have your plants been there? There's a chance that your plants are still under adaption to your tank condition.
5. 7-8 hours a day? And the schedule? Well, 9:00am-5pm and 3:00pm-11:00pm are totally two different stories.
6. How long has your tank been set up?
7. 9 months almost reach the maximum life of the tubes. The quality of light would deteriorate much. That may be one of the reasons why your plants do not grow well.
8. Give us more info of your daily maintenance and post a photo here to confirm. That helps.
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不過真係好多謝你提供咁多意見俾我！ 