Centruroides balsasensis

I purchased 4.4.0 C.Balsasensis on 25 OCTOBER 2009 for a mass breeding project
I was told 2 of them are already gravid but i'm not sure which one as they all looks the same size
I noticed the 1st mating on the 1st night i got them, 2 males are fighting over a female on a log i put in the enclosure
I left them over night and found a spermatophore at the next morning and i have never witness any mating nor found any spermatophore since then

Several weeks later i noticed one of the female is bloated up and faint reddish embryo are visible on the side of her pleural membrane and separated her in another container

Around 3weeks later, 7 DECEMBER 2009, i woke up in the morning and found 2 babies trying to climb on her back
She was all covered with babies within 2hours and was munching down underdeveloped eggs after i finish my breakfast
Rough estimation around 15 healthy babies was born

The other 3 female have visible faint reddish embryo visible too and i separated all of them from the communal tank and expecting more brood from them very soon

Here's some pictures to share
Spermatophore found on the next day i got them


7 DECEMBER 2009
Babies marching to mom's back


After an hour

Process done, munching time


Temperature: Approx 27-31ºC
Humidity: Approx 60-70%

Babies on 2nd day
Not much different, i mist the enclosure a lil bit hoping they will turn to 2instar sooner

Thanks Alex
3rd day, nothing new

4th day

5th day, today found one scorpling walking on the substrate
I picked it up and noticed the tail was flat and cant cling well on my palm but i put it back on the mom's back anyway

Their color are turning darker

6th day, some are molting when i checked on them
It took approx 5hours for all of them to molt to 2instar
It's amazing to see them hanging and molting upside down
At 1st i thought they ll fall on the substrate to complete the molt but their climb back on the mom's back to pull out the metasoma part instead

Found one dead on substrate tho...


I then separated the other 3gravid female from my communal setup in containers below

7th day, all molted to pretty 2instar
They looks way bigger after the molt and their tails are really long

Here's a picture for u guys to figure out their size

10th day
Majority of them already left the mom so i decided to separate them on that night
There are total of 13 healthy babies, with 3 found dead (Two of them 1instar and one of them 2instar)
They are dead on the mom back, probably die because of sibling piling up on them (?)

Here's picture of the dead, noticed the 2instar on the right's metasoma are all empty O_O

The group

Size comparison with my hand

Their enclosure