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I have a slight dilemma, I am attempting to breed some giant day geckos. I have three (2.1.0) and currently they are all in seperate enclosures. The female is appr. 8" and her calcium sacs are quite large. Then I have two males one is huge nearly 11" and a smaller one - just sexable- that is about 6-7'' and a little slim. I put the female in a clear plastic container and placed her in each of the male's cages, neither of the males took notice of her. Then I released her in the larger males cage, he immediately took one look at her and attempted to bite her in the upper back. He grazed her and took off a small amount of skin, she gave a bark and took off dropping about a half inch off her tail, I immediately removed her. Later I put the small male in her cage and she chased him around the cage several times, luckily he was too fast and she couldn't catch him, I removed him quickly. So my question is, which male should I put with the female to breed sooner? How should I attempt to combine the geckos to form a pair? I know that breeding can be quite aggressive-but was I right in removing both of the geckos in the given situations? Please give me some advice. Thanks very much for you help.

the big male was trying to breed with her. grandis are agressive breeders. I would put here back in with the big male and keep an eye on here at different times of the day. Honestly if your worried about her remove her from the male after a day. If she's in there a day He'll get has bussines done.

Yes, thats pretty normal behaviour.
If you want the male to be more gnetly, introduce him into her tank and not vice versa. Also feed a lot in the first two weeks and add a bigger, strang elooking object into the tank which slightly irritates the geckos (I use dolls). This reduces agressivity and once used to each other, matings occur much less violently.

Ci@o

Ingo

Hello,

I've been keeping giant days for about 8 years.

The female could intimidate him, because she seems way bigger then him.

I've experience once that the two female I keept togheter didn't get along, one was bigger ... It almost killed one ...

Keep an eye, but also don't worry, It doesn't mean because the first day he didn't seem intrested that nothing will happen. Also winter his usually for me the resting period ( depending if it's winter at home ) ...

Martin
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1.1.3 rhaco. ciliatus
1.1.2 P.M. grandis

thanks for the suggestions guys. One more question though- Do you think the 11in. male is too big to put with the 8in. female? There is a big size difference.