Fully grown when purchased. Hence why they bred for me so early

They were already an inch + when I first got them and already at a breeding age.
They don't live too long, I suppose.
Baby Batch statistics, it goes in the order of they were born. The females alternated in giving birth!
Female #1:
1st batch - Survival rate: Zero-Low
I did not put these guys into a breeder net, they all disappeared in a 2 week time period. I was able to put one or two into a little container to raise them separately but they escaped and disappeared.
Female #2:
1st batch - Survival rate: High
1st batch is a little over a month old now. Going very strong. I had over somewhere around 40 of them. I probably lost a about 2-3 during the first week of putting them into the net. After that, they all went strong. Gave away a few, sold some off and the rest I am keeping. I probably have about 20 or a little over, running around the tank. They were in a breeder net for a month and was released only a few days ago.
Female #1:
2nd Batch - Survival Rate: Low
Only a handful of this batch survived. I did not have a spare breeder net, so I let them wander in the tank with the adults. I don't know how big the batch was this time around but this female generally doesn't produce much. Female #1 is smaller than #2 and last time I counted, she only had about 25 or so. Around 6-7 survived and are still roaming in the tank.
Female #2:
2nd Batch - Survival Rate: ???
She had about 35 babies or so this time (estimated). A few died when I placed them into the breeder net. They're only less than a week old as of now, so I don't have much to say about them right now. Female #2 passed away, so this ends her batch updates.
Female #1
3rd batch - Survival rate: ???
Still carrying them. The eggs have hatched already but still cannot walk. I'll update whenever I feel like I'm not being lazy.