ACF black hands?

[Chunky Monkey]

I have 4 ACFs and for 3 of them, the inner side of their hands are blackish... does this mean something? I heard something about it being gender-based but one of the ACFs that has black hands I assume was female since it was quite a lot bigger than the other 3...

[mpmistr]

The black hands you describe are nuptial pads male frogs get and they're used for mating so they can more easily grasp a female. It seems to come and go randomly, some days on my male frog it's noticeable other days not so much.

Since you have three males but only one female you may want to keep an eye on them to make sure they don't get too frisky on your female, a 3:1 ratio could possibly stress her out. Having plants or caves so the female could get a break from the males may help, if frisky business did start to occur.

Then again my male frog gets 'dirty man hands' a lot but he doesn't sing and I've never seen him put the moves on my other frogs. I hear that these frogs do not mate often in home aquariums and to get them to breed in laboratories they are exposed to certain chemicals, then again other things could triggering mating too (like adding fresh, cool water which simulates fresh rainfall).

Probably nothing to worry about but I would keep an eye on it.

I thought my male frog was going to be female too, the guy is huge and as large as my female. I still have no idea what sex my third frog is, he's small but no nuptial pads and he's a bit of a chub.

[Chunky Monkey]

Two of my male frogs are small compared to my biggest frog, probably about half his size. Should I be concerned or should I feed them a bit more?

[mpmistr]

I'd only be concerned when one frog becomes large enough to consume the other. Some frogs just get bigger than others, there is a lot of size variation. How crowded the frogs are may also play a part in it.

Are they the same age? My smallest frog is also my youngest but he is at least 3/4 as big as my biggest frog, so I do not worry.