Reptile & Amphibian Forums

I've had my female leopard gecko since September of last year, and she's doing fine. However, I purchased an adult male leopard gecko yesterday and he doesn't seem to be doing so well. Both geckos are in the same tank, and at first, the male didn't seem to have a problem. Anyway, he eventually lied down in a corner of the tank and really flattened out. When feeding them last night, my female went after the crickets as always, but my new guy didn't even budge. He kept lying there, and every now and then a cricket would crawl on him and he'd flick it away with a foot or his tail.
Now I know that this adds a lot more stress, so I'm feeding my female separate tonight. A little earlier, I tried giving him a cricket or two and I had the same response as last night. Right now he's in a corner and just hasn't moved. I haven't seen him sleep at all yesterday or today. I've been trying to make it less stressful for him by taping some black paper around the corner he's in.
I'd appreciate some help. :

well first off you are supposed to quarantine new animals for at least 60days, 90 is better to make sure they arent sick because now if he has any diseases or ilnesses you are putting your female in danger! sometimes you cant tell if they are sick until a few months. ok so the black paper was a good idea and i recomend you get another tank and do the same thing except with the male by himself. you also should make sure you have several hides. leave him alone in the dark for like 24 hours so he can feel comfortable exploring and then he will know where to hide instead of cowering in the corner. then you can let him have a heat light or whatever it is you use or just window/room light. then at night try feeding him again like 5 crickets. see if this works. it may take a few days though but shouldnt take longer then a week. try not to handle him at all unless you need to. good luck. by the way are you sure they are male and female?

Thank you for your reply.
He came out of the corner tonight and explored the tank a little bit. I tried feeding him again, but he still has no interest.
And yes, they are male and female.
He does his tail rattling occasionally; although, I don't think my female gecko has let him mate with her. She's around 8 months old, so I'm not even sure if she's sexually mature yet.

This is a mistake. You shouldn´t put a male and a female together if you don´t want to breed them. You should quarantine your male before putting them together.
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3.9.0 Leopard Geckos
0.0.2 Homonota Darwinii (Talus & Gracilis)
0.0.2 Tarentola Mauritanica (Pickles)
0.0.1 Cham Caliptratus (Clotilde)
1.0.0 Golden Retriever (Cafu)
1.0.0 Black cat (Felipe)
0.0.x Tenebrio Molitor
0.0.x Zoophoba Mario
0.0.x Lobster Roaches

seperate them till you think he's ready.