<a href=showthread.php?s=&postid=15444141#post15444141 target=_blank>Originally posted</a> by itachi
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<a href=showthread.php?s=&postid=15439869#post15439869 target=_blank>Originally posted</a> by kangym
I have bad experience running 2 ATI 3 ft 8x39w on 30 in. high tank. My sps don't look very happy. The par readings are only around 300 at mid level of the tank. It is low to keep sps IMO. Your tank is 25 in. height, and you're running 10x39W. You should get more par with 10 lamps. What is your lamp combination?
<a href=showthread.php?s=&postid=15632248#post15632248 target=_blank>Originally posted</a> by zachtos
Is it safe to say that a well designed T5 system will be equivalent to your average 250W MH setup?
I get 300-500 PAR in most 12-6" depths but never could get SPS to really grow deeper then that, and I can barely keep my SPS color up on many of my SPS polyps regardless (great water quality and INSANE flow)
I am thinking of scrapping my T5 assembly for a 400W MH setup as this seems to beat out even the best T5 setups? Is this a safe assumption?
<a href=showthread.php?s=&postid=15635767#post15635767 target=_blank>Originally posted</a> by The Grim Reefer
Yeah, pretty much. If you use good halide reflectors and 10 to 14K lamps the 250's will beat out most T5's but if you run more blue lamps, like a 20K the T5's will probably win out.