about a week ago i found out my 2 fastae was sick and had parsites basicly they were pooping white string stuff , soo about 2_ays ago i treating the tank with quick cure im dont thinking its working bekause fastae still shy and not eating and they are still pooping white stuff i even raist the heat to 84 and i even add some salt can some one give me some tips on getting rd of it ? please ill hate to see my fastae die