i am bringing home fish into my tank i already have fish in this tank and they have been living there for years. The new fish i am bringing home are getting slime and cloudy eyes and slowly dying... like theyre loosing their mind. i had done a water change, and dumped the thing they told me to put in the tank, numonio thing that liquid... and it worked i put new fish in the tank and theyre still alive. so i go to my lfs today, and i see2 red devils i buy, i throw them in my tank (i have syphoned my gravel when i dumped that stuf fin.) they seem fine, i come back to check on them here we go again, the slime and retardnes scomes. they start floating around slowly dying. how can i 100% stop this? sorry if i typed this like an idoit, im playing diablo 2 great game. thanks i know i have came to the right place.