First let me describe my grow setup

A 2.5 ft high 1 ft accross cylindrical blue laundry hamper. It is lined with white paper and a white towel on the bottom. The pot is 6 in high and with the lights being mounted on top, the top of the plant is a little over a ft from the light. The light is three 23W ("100 watt incandesent equivilant&quot CFLs. I cover the top of the hamper with a black shirt and all light is sealed.

Let me note that this is about 1 1\2 weeks of full vegitative growth under my lighting (I sprouted it outside and it vegged outside for about a week). The soil is miracle grow (yes, I know...).

Ventilation is kind of crappy, but is for sure not starving my plant as it has been growing stadilly. I will add ventilation ASAP as well as add another set of CFLs to ensure my plant is growing to its maximum efficancy, although I believe lighting is currently adequate.

My problem however is browning on a few of the leaves, expecially the bottom ones. The plant overall looks lush and healthy. Is this just the bottom leaves dieing? a K defficancy? bugs brought in from the outside?

Heres the pic.