forgot to add:
-more choices in bulb color
-not having to swear when the pins get stuck and break the whole dang bulb making it useless for re-use in other setups where bulb age doesn't matter (hypothetical fowlr, my cichlid tank, etc)
-more flexibility: people have had both sps and clams under t5 successfully
-nice even spread of light (less dark spots)
-if you change your mind and put mh on later you might be able to re-use these for supplemental lighting
-just look at some of the success these bulbs have had over some of the european setups, these definitely give mh a run for their money (seeing those pics is one of the things that really won me over on the t5's)
And as a last side note some of the folks on canreef run t5's. I know mr.alberta does and he could tell you all about it.
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