A cfl probably isn't going to put out enough heat to cause any stress, unless it is one of the larger/higher wattage bulbs. Put your hand an inch or so from the bulb, if it feels hot and is too uncomfortable for you to leave your hand there for several seconds then it is too hot to be that close to the plant. Otherwise, that definitely isn't your problem.
To me it looks like slight nutrient burn. This could be from the Ocean Forest. Plenty of people are going to say that FFOF couldn't possibly burn a seedling, because it has never happened to them, or whatever; but it really does contain a lot of organic fertilizers. Whether it might potentially burn a seedling or not, I recommend not starting seeds in it simply because seedlings don't need such a rich soil at this stage. It is just more appropriate, in my opinion, to start them in a soil-less mix first and then transplant into something like Ocean Forest when they have a more developed root system.
Just keep them humid and make sure it isn't getting any worse.