I'm so sorry about your losses. This really sucks to hear about it. However you will learn from it, and be a better hobbyist after the shock is over. I agree with the posts about oxygen starvation and would look into that. When I first started out I inherited a tank with fish when I bought this house. It had a Ehiem filter and it stopped pumping one night and killed most of my fish. We still have no clue why it shut down since it was clean inside.
So sorry about Alfred.
|