i keep my brine in the refrigerator with the lid off... about half stay alive after a week... but i end up feeding all of them (dead or alive) during feedings... the fish seem to be a little weird when eating them though... sometimes i see one of the fish swallow a dead one and spit it back out... sometimes i see them doing it with the live ones too.... not sure what the deal is, but most of them end up getting eaten anyway....
I have heard of enriched brine... not sure what that is all about.. anyone??