I have heard good and bad things about the soderless units.I think the moduale method gives the best options for fine tuneing spectrum without to much rework.You shouldn't need to use t5's to fill the area's.I have a friend who used no lenses or reflectors and still has tons of par and there is no dark zones.See motorcityreefers tank thread for example.His diy lights are what I am speaking of.
IMHO any other type of lighting then LED's is a waste of time and money as you can tell.We have three sytems and all are lit by led's.If you acclimate your corals to led's and get the par levels correct.you will not regret the change.
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