New addition plus near heart attack

[Felis]

So sorry for your loss
But I feel you are trying hard and your tank is really good for ACFs, so I think you shouldn´t give up as well.

As for the Corydoras: Like Jenna said, this is a dangerous combination. In January, I wanted to adopt a new frog, but a few days before I could pick it up, this happened:

The frog tried to eat a catfish at night, but it got stuck in the frog´s throat with its spines- both were found dead the following morning.