how often do we need to chage T5HO tube? I have 2ft T5HO 24W. when i want to get the replacement from Natural Plant, they told me T5HO shall be change in 3-6months. Otherwise the lights will not be effecient for plnted tank after 6 months. If it is true, then my wallet will bocor every 6 months.

my CO2 tank empty yesterday. This afternoon went to Syarikat City to refill. Still RM12.

after bring home, connected to hose, turn on the blue vale, only found out have leakage somewhere, can hear the gas leak sound. Got some gas come out from the joint the arrow pointed.

Anybody can suggest what shall I do. Where can I send for repair/replace the valve. Roughly how much does it cost?

where can i find cheap 36W and 55W PLL bulb? How much is the price?

can I use Philip 865 for my planted tank? or I need to use 10000k?