have clown loaches that have ich and one of my other fish have any signs been treating for 5 days, its getting a little better but now im able to get my hands on a year old TSN and a year old Aro even though ill have to get rid of all my other fish minus an adult Blue Crayfish and an adult Stripped Raphael Catfish so whats the best way to eradicate all Ich shall i sell fish that present zero signs of ich and get rid of all my sand and filter media and 100% W/C and just start from fresh with a cycling chem to help speed up cycle time i really want those monsters but dont want them to caught the ich??????