I fear that I killed my Midas & fish store lady told me to find a forum for help. We have been suffering our own major medical and it seems our brains shut down to the signs our fish was exhibiting and now I have spent the last food $ on store chemicals trying to save him but he is laying on his side gasping and I have 7 bodies to feed and medicate till next month's payday. (So poor woman ideas needed. ) Plus I really hate myself right now and if he doesn't make it everything goes cause I failed - no creature deserves this suffering. So if you have a thread that can help me know when I should give up and if I should euthanize and how would I do that please send me in that direction. I have some 35% food grade peroxide & I put a Tbsp in last hour but he moved away from it which leads me to believe that it doesn't dissipate instantly into h2o2 plus extra oxygen as some say. (120 gallon.) OK TIA.