Reefgeek has 60" reflectors for T5's that are 2 1/2" wide. They are the best reflectors available in the North American market that I know of.
If you only have room for 4 what I would do is contact Reefgeek and tell them you want a 4x60 watt T5 retro kit with the Reefgeek/Aqua Illumination brand reflectors and 2 Ice Cap 660 ballasts. Normally they would give you 2 430 ballasts but as it turns oput the 660 do provide higher output for T5 lamps.
You need to have a fan at each end of the canopy tat will blow air down the row of endcaps from front to back. You want to keep the ends of the lamps cool, about 115 degrees.
For lamps do this
ATI Blue Plus
KZ Fiji Purple
ATI Aquablue
ATI Blue Plus
That wont look as bright as you might think by the names of the lamps.
As long as you are talking Carpet anemone that should be enough light for most any anemone that can get on the rocks.
A guy tested PAR on a 6x80 Tek II reflected retro on a 24" tall tank and had sand bed PAR in the 340's. The Reefgeek reflectors are better than the Tek (and Ice Cap for that matter) so on a 34" tall tank you should still be better than 100 at the sand at least. With about 200 at the sand my lights were too much for a RTBA, it hung out behind the rocks.
