Hi everyone, This is only my second post, but I received so very good and appreciated advice on my last (similar) request for help. I feel it necessary to give some background as to how i am in this situation, but if you think it's irrelevant(or frankly couldnt care less), please just skip the following paragraph! I am very new to this, but trying to learn as much as I can. Thanks to this forum and a few others, I have really made some progress but obviously have a very long way to go. I have always been a HUGE animal/fish lover and way before starting my own tank I have had a very deep soft spot or all animals/pets. I originally went to petsmart and purchased a Betta and mystery snail with a basic kit. Looong story short, I now have a 5 gallon tank for my Betta and a 10 gallon tank for 5 total fish plus 2 mystery snails. I had no idea what I was doing or what cycling was until a member from this forum helped me! Aside from my slow start, I still have a huge soft spot for any sick/suffering/unhappy creature. Now the reason for posting this! I have already taken home a sick/neglected mystery snail from petsmart in a desperate attempt to help him. As if the pain of watching him suffer hasn't been enough, today while picking up a air stone I ended up bringing home a very sick and lonely albino cory catfish from petland discounts. He was the only cory in a huge tank of 50+ glofish and has red markings on his body. He was consistently darting up to the tank gasping for air. This behavior alternated with periods of what looked like paralization at the bottom of the tank where his gills would make him appear to be struggling to breathe. Being so inexperienced I know I probably shouldve left him there, but all the other tanks were filled with dying/rotting fish. Some struggling to swim, some struggling to breathe. Then I noticed that about 5% of the glofish which shared the tank with the sick cory had an odd curvature shaped body. At first I was thinking it was a product of genetic engineering. Then I realized that random(different) fish from other separate tanks had similar characteristics. Ok, so on a side note I am a student nurse and have heard of humans contracting mycobacterium tuberculosis(Fish TB) via open cuts/sores on their hands. I did a quick google search on my phone and realized that these deformed fish were all infected with TB. I have contacted the corporate office as well as the CDC because mycobacterium TB is a communicable disease and can infect people who may handle or care for these fish. I don't know what else I can do but it doesn't seem to be an urgent issue Back to my sick cory - he does NOT share the curved spine with the other fish. However he does have periods of paralysis, twitching, darting around the small quarantined bowl I am keeping him in, and even blinking. He didn't move for 4 hours which was why I was posting this, but right now he is darting all over his bowl. I have an air stone in there along with prime treated water. The parameters are all normal and the temperature is 76 degrees. I am freaking out because just a few hours ago I was researching ways to humanely euthanize him!!!!!!! Now that he's suddenly swimming all over I am really freaking out!! I have no idea what to do or how to handle this. Please, please help if anyone has an idea of what should he done for him. I was leaning towards possible ammonia poisoning but read that there is no treatment for that. I will be checking back frequently for any replies. Thank you!!!