Eh, forget the incandescents, 24 watts of incandescents isn't going to help your plant(s), although they will add some heat.

It's natural for the plants to suck the nutrients from themselves and look worse, as they approach the end of flowering. Looks to me like you'll be just fine. Just don't get impatient now, or start mucking about with nutes too much, or you could cause way more problems than you'd solve.