my usually very in active shrim at least inactive during daytime has just gone from his usual demeanor to a shrimp that is off his rocker... ok im fighting ich and i just put in new heater and did a water change during the waterchange i added some salt to fight the ich... now my shrimp is running all over the place running on the walls running up logs features and the one plant i left in there... is he trying to get to the surface for air or something?? help plz