11-03-2008, 03:03 AM
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If you did one 5000, and one 10000, then you would need to get smaller lighting fixtures too hehe... because one 10k and one 5k both suited for a 29 gal will be overkill IMO. You'd have to get different sized lighting fixtures for it too then... a 29 Gallon is still on the smaller side, and a 5k would be fine on it, or if your lighting fixture has 2 bulb inputs, get two 5k bulbs...
I agree with Cody... A 5k bulb would be fine, because its not so strong, it won't produce algae blooms...Algae blooms are pretty much caused from great lighting(or very high rated lighting) with not enough Co2 injection...
If it were up to me, I'd go with the 5k tube, and don't go for t12... better to find a t5 light, but t8 is fine too...
Hope that helps