You can but I would prefer: for 6bulbs I used to run
b+ ( day )
Uvl super actinic (actinic)
Blue+ (actinic)
Fiji purple or uvl super actinic ( actinic)
Blue + (actinic)
Blue + ( day).
You can flip the actinic and day if you wanted. 2 super actinics a d 2blue plus on a actinic cycle look great if u have alot of greens in your tank. I just broke down my tank and had 6x54w tek light over a 75 and grew anything anywere. It's really all about what you have in ur tank and what colors you wanna pop.
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jerl77 said:20 k look?
can u get 20k out of t5s?
wow great link thanksYes if you go to this link it will tell you what bulb you will need for 20k look
http://home.comcast.net/~stevelarse...s/&PHPSESSID=c1c36e4c496ed620a6b23514c978c7f0