I had to take her out of her misery. She started to curl up all the way around her disc, and started to get red underneath. I knew it was a lost cause at this point so i called for some help to get her out of the tank, end her life, and do a quick c section. Turned out there was at least two more pups in there but they where long gone. One of them was actually almost completely decomposed and it was bearly possible to distinguish it from the rotten materials in there. It was a mess and it reeked so bad i had to take a few short pauses while searching for life in there. Before we pulled out the dead pups - me and the guy who helped me where probably close to getting stunged by the pup`s barbs several times, couse we worked on such a high gear, went all in with our fingers trying to find something living.
Well, so the mother obviously got poisoned from the dead pups inside of her. This is a absolute devastating tragedy. At the more early stages i tried my best to get hold of someone with expertise on this, maby also someone who actually would know how to do c section on aquatic animals, but no luck.
At least she was able to leave something before she left - one healthy and great looking female pup.