Oh thats terrific he pooped.That probably wasnt making him feel too well.Did you get the uvb? So his basking is 110F thats fine so long as it doesnt go higher.Do you know what the cool side air temp is?You said you gave him lettuce?I would stay away from anything that says lettuce.Occasionally you can mix romaine in with other greens but they really need dark leaf lettuce and veggies.Here is a link that gives you the run down of every plant they should eat and what they shouldnt eat.
http://www.beautifuldragons.503xtreme.com/Nutrition.html
http://www.beautifuldragons.503xtreme.com/Nutrition.html