alright so i bought this product called aquari-sol and it is to prevent and treat ich how exactly do i use this product do i just pour it in there or wat i bought it the first time i had ich in my aquarium and it didnt wrkk or i didnt use it properly and it wiped out my fish so now i want to get help any suggestions??? need help asap before it spreads i got 3 loaches1 red tail shark 2 gournamis 2tertas 1 pleco and 1 danio