When hyposality doesnt work, whats next?

Ok my 120's been in hypo for almost 3 months. 1.009 at it lowest. Its 1.011 currently and all my fish but the original carrier are cured. Its a 8" stars and stripes puffer that caused all the problems in the first place . I plan on removing him soon and raising the level back to normal. Whats the best way/meds to treat him? I have a 40 breeder cycling for him at 1.011. I believe he needs some sort of chemical bath for an extended period of time lol. I will adjust the salt in his 40 back to normal over time before i use any chemicals as im pretty sure hypo and chemicals is a deadly cocktail. Any info on good products for ich treatment is appreciated. Thanks

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Hes been dipped before with no sucess...i left him in for around 4 minutes, worth a shot again i suppose. I'd just like to treat him at this point. Hes a super healthy eater and has grown atleast 4" since ive had em. While in hypo his ich will come and go, my other stock is ich free and has been so for 2 months. Idk if i dropped my salt so gradually that the disease adapted aswell? All my live rock, coral and aptasia all diead off within the first month. Glad the aptasia is gone though just in awe the ich can survive at a 1.009 level

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After 4 min. He became very erratic, breathing hard and i was worried about killing him in fresh water for any longer. Im surprised you dip your fish for up to 10 min. When dipping for that long what are the warning signs to look for for the time to return the fish to salt? Im just not comfortable leaving them in that long

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Thanks for all the info miguel...it is a horrible thing to watch hah...def. y i took this guy out after 4 min. Im going to try one more time before i move him to a hospital tank.
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