Originally Posted by Isistius
this is a really tough call. there are so many options, and what it really comes down to is color preference. i currently have a 5bulb fixture, and i'm running a ge 3500k, ge 6500k, and 3 geissmann actinic plus. i decided on this combination because this was over my frag tank - so i wanted growth, hence the 3500k and 6500k bulbs. the bluse were just for MY viewing pleasure. however, since i am moving everything (including the light) into a different tank, i will be switching the bulbs out for ati's - 3 12000k aquablue specials, and 2 18000k true actinic 03. this will give me real nice growth due to the par of the 12000k bulbs, while amazing fluorescence due to the 18000k bulbs. there is a thread on ** that is amazingly in depth on the par values of the t5 bulbs out there.
but like i said, what it really comes down to is preference. and if you really don't like the look, you can change the bulbs easily b/c the are relatively cheap, and you may only need/want to replace 1 (or a set).
hth
OK. So should I get 6 12000K aquablue and 6 18000K true actinic? 3 on each side? If I get aquablue and actinic, will the tank be REALLY blue? Or does the aquablue have some white/brightness to it?