Tank Trouble/Dying (maybe parasite?)

[bhajjj]

so a few weeks I posted about a fungal outbreak. killed my plecco, two angels, and my farlowella. also an ich outbreak. so I treated the tank for 7 days like the fungal medicine told me and did a water change as well as throwing ich medicine in there. NOW my German Blue Ram is acting weird. he is hiding in the back top corners of the tank in the dark and hiding over in the lower corner by the bottom with all the plant coverage. he also looks like he is gasping. I just noticed that he has this thing coming from his butt that doesn't look like his normal feces. it's a weird clear-ish thing. and one of my danios has a more bulbous version. can someone please help me. I have no idea what is going on! I tried to take pictures but it isn't very clear because the ram is hiding in the dark and the danio is too fast.
(ps the danio isn't displaying any abnormal behavior. he is just fat)

thank you!

 

[bhajjj]