help with black ich

[freewilly2]

i tryed the freshwater dip and the ytang just sunk to the bottom so i took him out right away. so i was thinking of a formalin dip. what do i do?waht should the salinity be at and what about the temp. and the ph?

 

[kraze3]

http://www.petsforum.com/personal/trevor-jones/blackich.html

Info on both above