That sounds like a good fix. These are not great indoor plants if they don't get daily sun (reflected light is good but not a substitute). My plant is outside and gets maybe 6 hours of sun this time of year. The problem occurred during the winter when that area gets shaded by a wall, and that was the only time I really saw any green at the center. Here is what it looks like now... could use a scrub, we haven't had rain for a while. A couple of mealies need to be picked out of there, now that I look again. :)