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some of them still had a big yolk, some didn't

Thank you for your help! I will follow what you said and hopefully al this situation will resolve! :angel:

but could be the lack of the almond leaves the reason why they all died? :/

No, I only found out about the almond leaves a couple days ago on my researches... I didn't feed them because I read that due to the yolk sack they dont need to be feed in the first day after hatching...

The water parameters were all within the normal (I follow the sera quick tests reference values), or at least I think they were. Even though because I had some guppy fry the day earlier and they all did good! That's why I was so confused about why the cory fry just died. It occured to me that...

I did test the tap water and it didn't have any nitrates. That's why it has been so frustrating. Sorry I didn't mention the values. but it was abou 100mg/L according to the test strips. The tap water had indeed 0 nitrates. Thank you, Colin. I'm going to try the 75% water change along with the...

Hello! About a week ago my corydoras aeneus decided that they wanted to increase their family. I collected about 200 eggs and 3 days after the fry started to hatch. However, one day later they all started to die, one after another. Does anyone know anything that could justify this happening...

Hi! Recently I've noticed that the nitrates on my 120L tank were too high. I immediately made a water change of about 50% of the water and added sera toxivec. The next day I tested the water again and the nitrates were still high so made another water change (about 25% of the water) the day...

Hey, everyone! I'm Gabriel, I'm 25 and I'm from Portugal. Recently I've decided to go back to my teen years and pick up again theis hobby. I have a 120L (32 gallons) tank with guppies, ballon mollies and cory catfish, and another one of 50L (13 gallons) where I put the fry that I've already...