I am setting up a frag tank 24x20x8. My dt uses MH and t5 supplementation. I was thinking of going with two t5 bulb fixture over frag tank. The frag tank is only for acans chalices and zoas. Do I need a four bulb fixture or two is enough.Option of bulbs coral plus blue plus ,actinic blue plus ,coral plus actinic.Any ideas guys.
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