Thank you so much catpicklesdog... they actually have "puffed"... this is why they are floating... something tells me that it's not a fear of the eel though, as the eel has been around for a couple months already and all has been well... besides, now the eel is acting lethargic as well... Still after one whole and one half water change every one in the tank is taking a turn for the worse... I'll try upping the temp a bit and checking phosphates (thanks for that)... I'm just puzzled... I'm thinking it may have started with the feeder guppies I dropped in 2 days ago... they may have been tainted some how...
Thanks again,
Eric