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Nymphs Unable to Complete Molt? *NOW URGENT HELP NEEDED*

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My female hisser has given birth twice this year. I gave most of her first brood away, but I kept two. This was about six months ago, probably. She just had new babies two days ago  

Today, both of my previous juveniles molted. Or tried. I’ve been keeping the cage very warm and humid. They seem to be only partially molted on their backs... It’s been hours. Is there anything I can do besides put them out of their misery? They’re barely even moving at cage temp around 75-80 degrees Fahrenheit with high humidity...

 

What caused this? The stress of new babies since my colony had been so small? Lack of protein in diet? Just... Birth defects? Something else..? 

I’m heartbroken, but I want to prevent this from happening again if I can. I can add a picture later if it might help.

EDIT: Both of my older nymphs passed away, but I’ve only had one casualty from my current brood. I’m suspecting it was something to do with not getting enough protein... I’m going to look for a dog food with more protein than what I’m currently using. 

I’m also suspecting my female roach is an oblongata instead of a common hisser. She’s colored very different from my little male. 

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Update, other hisser babies died within a day of the bad molts and now I think it’s happening again. What am I doing wrong?! I gave them high protein dog food plus their normal fruits/veggies combo and I’ve been keeping the cage pretty warm....

I really need help, I don’t want more nymphs to die because I’m doing something wrong. Please help me... 

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Sometimes I've found insects in general (not just roaches) can have bad moults when they haven't got enough humidity so I'm wondering what level of humidity you are keeping them at? You say "high" but do you have a humidity meter in the cage and if so what is the level? Also what substrate and temperature? It seems odd to me that the older nymphs did not mature in over six months, I tend to find hissers of various species mature more quickly than that in general - I keep them around 22-25 Celsius (sorry not sure what that is in Fahrenheit) and they usually take 3-4 months to mature.

How many babies do you still have and what size cage are they in? Do they have anywhere to hide, like cork bark or toilet roll tubes? I think they can get quite stressed if there's nowhere to hide especially during the day. 

Otherwise I can't really see anything obvious you're doing wrong, so it could also just be that they wouldn't have survived anyway - it does happen and I tend to find there are always a few casualties in every brood, although I appreciate it's much harder to lose one or two when you only have a few to start with.

When I first started keeping roaches my first female only had four babies in her first and only brood before dying and I lost all of them 😞 I was really upset by that and, like you, at the time people on here told me I wasn't doing anything wrong either and I still to this day don't know what caused it as I have not changed anything much about how I keep them to this day. But then I got three more females which each had at least one large brood, and now I have a thriving colony, so much so I have had to separate out the female nymphs before they mature so they can't breed otherwise I would be over-run with hissers! 😮

 

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19 minutes ago, BlattaAnglicana said:

Sometimes I've found insects in general (not just roaches) can have bad moults when they haven't got enough humidity so I'm wondering what level of humidity you are keeping them at? You say "high" but do you have a humidity meter in the cage and if so what is the level? Also what substrate and temperature? It seems odd to me that the older nymphs did not mature in over six months, I tend to find hissers of various species mature more quickly than that in general - I keep them around 22-25 Celsius (sorry not sure what that is in Fahrenheit) and they usually take 3-4 months to mature.

How many babies do you still have and what size cage are they in? Do they have anywhere to hide, like cork bark or toilet roll tubes? I think they can get quite stressed if there's nowhere to hide especially during the day. 

Otherwise I can't really see anything obvious you're doing wrong, so it could also just be that they wouldn't have survived anyway - it does happen and I tend to find there are always a few casualties in every brood, although I appreciate it's much harder to lose one or two when you only have a few to start with.

When I first started keeping roaches my first female only had four babies in her first and only brood before dying and I lost all of them 😞 I was really upset by that and, like you, at the time people on here told me I wasn't doing anything wrong either and I still to this day don't know what caused it as I have not changed anything much about how I keep them to this day. But then I got three more females which each had at least one large brood, and now I have a thriving colony, so much so I have had to separate out the female nymphs before they mature so they can't breed otherwise I would be over-run with hissers! 😮

 

I have an egg carton in the 11x7x8 tank, along with two toilet paper rolls and a hollowed coconut shell. They sometimes hide under the plastic dish for their humidity/water sponge. The nymphs still tend to hide in the substrate, is this weird? I wouldn’t consider my cage “damp.” I’ve seen it argued about whether or not the hissers and their nymphs thrive in higher humidity, so do they? I’d always just assumed so. 

This time, my molts have come much faster, it’s been about 3 weeks since they were born and I’m getting my first molts. One completed, but is now acting strangely, as though it can’t walk. The other has not yet completed, but I’m leaving it completely alone to see what will happen. This brood has 39 now, probably soon to be 37 if nothing changes with the conditions of these two... 

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