4 days ago now my large female cory did a huge spawn and I managed to save around 20 eggs in total. Last night I checked them before bed and I noticed 3 eggs definitely moving. They are housed in a temp ice cream tub with ventilation holes, the same as last time, but when I got home from work 1 hatchling was still half in and out and after 10 mins observation I came to the realisation it didn't make it I have now checked all the eggs and the ones that had movement are now not moving at all. I don't understand what went wrong I am gutted I have the temp tank all set up and ready for them too! Any ideas?
I can't tell why they didn't hatch. I have never seen movement in my eggs no matter how long and hard I've looked at them and some still hatched
I need glasses I guess.
The eggs can take up to 5 days to hatch and even more depending on species and temperature and the one that was half way through you should have left. I had one that stayed a couple of hours with it's tail out and then I only saw the shell later on so it must have hatched. Have you put any unti-fungal medications with the eggs because sometimes they can harden the egg shells too much and the corys can't get out. Also, do the eggs look brownish and ok, because it may just take this little bit longer this time maybe?
And also, why don't you put the eggs in the newly setup tank instead, near a flow or air stone so when they hatch you don't have to stress the hatched corys moving them. Make sure the new tank is cycled because with the amount of food you have to put for them the filter needs to handle a lot of possible ammonia.
I am gutted I have the temp tank all set up and ready for them too! Any ideas?
