I'm not all that experienced in keeping snakes, but I've read some things over the past six months or so. You can find all kinds of care sheets online. A few that I liked are:
http://www.kingsnake.com/ballpythonguide/
http://www.anapsid.org/ball.html
http://my.pclink.com/~dkelley/python.html .
You can also find small books that give an overview of the care of ball pythons. I have two of these books, and I think both are linked from the last of the three pages that I cited above. There's a new book that was written and is being sold by a frequent contributor to this forum. The book can be ordered through
http://www.newenglandreptile.com/ .
I haven't ordered it yet, but my impression is that the book is big and full of pictures and descriptions of different morphs. I don't know whether the care information is that much more comprehensive that what is found in other books. If you look at the links for ball python breeders, you'll find that many include caresheets on their websites.
Another good source of information is this forum. Most questions have been asked here many times, and if you look through old posts, you'll find them. About half the time, the subject line for the thread is written clearly enough to understand what the question will be and whether the answers will be helpful.
The good news is that there is a great deal of information. The bad news is that there isn't always consensus.
For instance, people will offer all kinds of ideas for what size cage is needed. You already have one post telling you that your 50 to 60 gallon cage is too big. I have a ball python that's younger and smaller than yours, and she's perfectly happy in a 55 gallon aquarium. Some care sheets say that a cage with bottom surface area of 36 inches by 24 inches is plenty for an adult ball python. Others say that the cage needs to be as long as the snake is. Others say that half the perimeter of the cage needs to be equal to or greater than the snake's length. I don't know the right answer or whether there is a single right answer.
I've concluded based on my limited experience and my reading that a "too big" cage is okay for a ball python as long as he has plenty of effective hides. Of course, people will also disagree about what makes an effective hide. Some very respected people on these boards say that the log and half-log hides that you find at pet stores are worthless. I have two snakes that use these hides occasionally. I wouldn't want them to be stuck with log or half-log hides as an only choice, but I'm happy that I'm giving them that choice. The important thing is that the hide is configured so that the snake feels safe in it. I like to give my snake many choices to find what she likes best. Most people probably think that I go overboard on providing a choice of hides.
From what most people are telling me, your warm side temperature at the substrate level should be a little warmer. Of course, you need to measure the temperature at the substrate level where the snake is and not halfway up the cage wall. The consensus on temperature seems to be that ball pythons need a basking spot that's around 90 degrees with a gentle gradient to the low to mid 70's on the cool side. Some people will recommend a temperature gun, and a frequent contributor to this board sells one that I like very much. You can find this device at
http://www.tempgun.com .
I have the PE-2 model, but most people are happy with the PE-1. I like getting information from the temperature gun, digital thermometers, and aquarium thermometers. Most people probably think that I go overboard on thermometers, but I doubt anyone would seriously argue against measuring temperature two ways.
If you're getting a consistent 60% humidity, you're doing better than I've done. I think the guides would generally say that your humidity is good. Maybe someone else will make further comments on that point.
Congratulations on getting a ball python. Like you, I've wanted one since I was a kid. I'm 42, and I just bought my first snake and first ball python in October. (I also bought a California Kingsnake at that time.) I love my snakes although I worry about their health. As I gain more confidence in their care, I'll enjoy them more.
Bill

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It's not how many snakes you have. It's how happy and healthy you can keep them.