And yes all in bio mine are, even hatchlings 
Also I keep females together in pairs or trios, all do brill.
A couple were picky on who housed with but all good now
Just thought I’d check!
My Cresties have bio-active tanks also.
I think it depends on the Crestie.
I tried to cohab Gingerbread Latte, but she didn’t do well so she is back on her own.
However I have 2 sisters that live together, I seperated them but 1 didn’t do well so now they stay together.
I agree your gecko is looking more like a she!
The creatie?
I mean crestie
I think they are referring to you saying it’s a he. When it looks to be female.
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Yes the Crestie looks like a female
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I love this, he sounds wonderful.
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So it’s a girl!!
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That’s what I said 
Very obviously not a he that’s for sure 
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Your Gecko looks fully grown, fully grown males will display a clear bulge. Most start to show when young but I have had a late bloomer.
Males also have pores.
How old is your gecko?
Here is a pic of one of my male geckos, showing a clear bulge
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I’m not quite sure… I got her from a place called twin cities reptiles. Which is where I got my Leo too! They said she was probably 5 months or something I don’t really remember… but I got her in September
How much does she weigh?
You might find below page useful.
How to tell the sex a crested gecko
But if she weighs above 25g (as I expect she will) then I’d say she is a female
She’s 29 grams!
Yayayay
How old would u say she is then?!
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Could be any age. Some are slow growers.
From what you said she could be around 8 months?
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Yay! Ty guys SOOO much! Been so much help!
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She could be as young as 8 months to 3 years, just depends how slow or quick her growth was.
But yes, I’d say female at that weight!
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Definitely no bulge, so female at that weight!
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I know I’m late to the party but she is absolutely beautiful and adorable. She looks a lot like my yoshi. I love her!
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your school lets you bring your CrUsTiE