I have the great respect for both Greg and Rico, but they do things totally opposite of one another...in every sense of chondro keeping. Although Greg's book has some great info, it is his opinion. Rico keeps all his breeders in GLASS tanks with screen tops and screen fronts. He uses overhead lightbulbs for heat. Yet, he is the most successful chondro and emerald breeder in the U.S.
Again, both are great at what they do, but there is more than one way to keep chondros. I just want to point that out. Buy both books as well as the Kivit and Wiseman book and you should get all the info you need minus experience. Experience is the best tool for learning. Hopefully you don't make any major mistakes and things work out best for the animals.