Brazilian Micro Sword dying?

[snakester1]

I noticed today that the Brazilian Micro Sword I planted a couple weeks ago has turned brown (mostly at the tips, some in the middle).. I touched one and it broke off.

Does this plant melt?

I have 2 T5 HO bulbs, 6500K and 6700K running 7 hours per day. (I just bumped it up to 12 tonight)

Also, I planted in small bunches rather than large clumps.

[rich311k]

What size tank? What wattage bulbs? What kind of substrate? Is there any new growth?

[snakester1]

29 Gallon tank

Seacham Flourite black substrate (two bags of regular and one bag of fine cap)

The lighting, all I know is the K's I have there. I thought with T5 wattage was not as good of an indicator as K?

Cabomba has been thriving.. Swords seem to be fine. The micro-sword is not shaded by either.