Just curious to see how many leo geckos people put per cage.
Quite a badly formed question, as this completely depends on size.
The best answer is: 1
Some people use the formula: #geckos = gallons/10 - 1
i.e. 3 geckos to a 40 gallon.
Some people say 3 can go in a 20, but really the most important thing is that there are enough basking spots & hides (cold, warm, moist) for each gecko. The more space there is, the less likely bullying will be incurred.