t5
switch to t5 and you wont regret it. recently switch from 2x250 mh to 6x4 and 4x4 t5 on my 90 and things are just blooming although i do stagger photoperiod 6 hrs with 10 bulb, 8 hrs with 8 bulbs and 10 hrs with 6 bulbs. no heat issues even during dog days of summer and coral colors are amazing. you really should experiment with different bulbs until you are satisfied with what you feel is the best combo for your tank.
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