I've had my 3 year old leopard gecko in a 10-gallon tank ever since she was a baby, i bought a Sunglow female that is bigger but younger how should i introduce them? i've had my oldest introduced to sunny before but they ignored eachother. now its like they hate each other.
•3 year old is 60 grams (trying to fatten her up:3)

• 2 year old is 95 grams (slimming her down:3)