Thanks for the replies. One other thing though should I add an undergravel
heating cable along with the t5's.


Thanks
"Altum" wrote in message
. net...
Richard Sexton wrote:
In article ,
John Allen wrote:
I have a choice

2 x 38watt t8 flourescent tubes, or
3x 54watt t5 luminaire

For economy the T8's.

For performance the T5's.

I'd go for T5. 2 x 38 watt tubes is not enough for high light plants
unless it's supplemented by some natural light.

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