03-05-2012, 11:34 AM
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Originally Posted by kangy
Gotcha, thanks for the clarification. I was getting confused with the HO-NO. I was under the impression you guys were recommended the single T5NO (linked by quantum). Haven't even thought about going HO. The T5HO for some reason is burned into my brain housing group as bad for low tech. You are absolutely correct though a single HO bulb is a lot cheaper and easier to find than a T5NO bulb.
Earlier I said that Quantum's suggestion was good, and I still do. Trouble is, NO tubes are rare. For example, no one in Vancouver where I live carries them. And I prefer getting this sort of equipment via local stores in case I have to take them back. And I cannot recall ever seeing NO advertised in TFH or PFK.
HO is much more readily available, as more and more manufacturers are getting into this. ZooMed now carries a complete line of their tubes in T5 HO, and Hagen brought out their T5 "-Glo" series quite some time back. Neither of these make NO. NO is very close to T8, and I suspect the thinking is that if you want that level of light, stay with the less expensive T8. T5 was initially developed for reef tanks that need high light for corals, without having so many tubes over the tank. It's application to freshwater has been a convenience, but perhaps not ideal. And with the increasing development now of LED and other lighting o-options, I doubt we will see much advancement in the T5. They have developed VHO (very high output) again for reef systems.