One of my tanks is going through a bit of an Ick spell. I've been treating with increased temps, disolved salt, Aquara-Sol, and increased surface agitation. This method as worked well in the past with no losses of fish and the pictus (not this same one) handled it well. However, this time, a Pictus does not look well at all. His barbs are all floppy like they are just strings attached to his face, hes breathing very heavily, and hes not eating very well. He just sits on the bottom of the tank. Is there anything I can do that I'm not already doing to help him recover?