Originally Posted by
matherfish
With only two tubs having problems and all the babes dying in them I have decided it probably was lack of water changes. I am not sure but I think the babies got too warm, as the temps were up this weekend to around 70*-72* , although the others would have been just as warm. but that is the one explanation that seems likely. they were on the end, so it may have been warmer there than elsewhere. Not as warm now, but still nice temps for them so i have cut the heaters thermostat down so it will only come on if it gets really cold, which it is not supposed to do so. Axolotls do best in 62* -68* temps. If the water get into the 70s they can get a fungus.
The other explanation may be that there were half of the number of babies in these tubs as the other tubs, 10 and 11, and i may have feed them too much and the excess food polluted the water and the lack of oxygen in the water may have killed them. I will be more diligent in my care taking.