水草情迷

I am quite confused about lighting. A 5200K HQI can emit light spectrum similiar to day light and is suitable for plants. But if the tank is deep, say, more than 26 inches, the light may not reach the bottom of the tank. Some people suggest to use 10000K that can penetrate down to the bottom of the tank. But is 10000K has the required spectrum of light? What is the relationship between colour temperture and light spectrum? Please advise. Thanks....

有時間睇下我之前係草圖O既30吋缸, 就係用 10K HQI 膽O既, 草都好茂盛O架, 仲係用砂種添.

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SuperCTW,

Thanks. Your tank is very nice.

又好像得播, 真係有時要試過先知, 會唔會多d藻及其他方面比5200k差(如藍藍地)? 我試過10000k PL 就麻麻地...

I am not sure whether the 10000K is better than the 5200K about the light transmit to the bottom of the tank but it seem not likely or not a serious factor.

Visible light spectrum are form violet to red , blue,green,yelloe,orange are in between, the wavelength is arround 400nm-700nm, outside the visible spectrum are ultraviolet, ultrared etc. The combination of different % of color spectrum inside a light make the light have different temperture ....

肥魚仔,

Thanks for your inputs.....