Have you ever just sat and watched your fish, and you notice one thats not doing so hot and know that it likely won't live much longer, and then you watch some more, and everyone of your fish is almost like licking there lips just waiting for it to croak? i have a firemouth that is relentesly chased by another firemouth and its to the point where it really can't eat anymore. i don't have another tank for it so i guess i have to let nature do its job. However my senegal and 2 hujetas now seem to just be waiting for the firemouth to die becuase they have it backed into a corner and keep swimming up and messing with it until it puffs up its gills.