Loosing fish HELP

[Delphinus]

Originally Posted by Roderick

Corals were all fine and so were hermits, snails, anemones, sea apples and an emerald crab.

What anemones do you have?

Mixing anemones is a dicey business. You get things like allelopathy and chemical warfare that isn't obvious but produces weird random things that leave you puzzled as to what's going on. Not always a problem, in fact, it's more often not a problem, but there's "potential."

In the case of some anemones, for example Heteractis magnifica there is potential for the anemone to cause massive tank death. Probably some kind of defense mechanism triggered in times of stress, but lethal in a closed system. I've had no fewer than 3, possibly 4 (I've lost count) lethal events where I've lost 100% of my fish due to the anemone being moved. (I didn't clue into what was happening at first.)