Floating Butts and Shiny scales
I have a weather (dojo) loach who seems to have an upset stomach for over 6 months now. When he uses the bathroom he poops out these pebble looking things covered in a white mucus, and when hes not swimming his butt floats. I have been trying to help him out with meds, i was thinking a salt bath but i heard that's dangerous with loaches, but i don't know whats going on with him. Hes always happy and playing with his loach friends but I'm worried it might be something that could be serious since when he poops his whole body shakes and it looks very labor intensive, like a little loach seizure
Second i have a Rummy nose in the same tank who has had white/shiny scales for a while as well, he looks puffy and the color on his back half is dull, but he schools fine, never acts sick (i.e. floating, hiding, odd behavior) i just have no idea whats wrong with him, i have done large water changes, and i cant quarantine him because, 1/2 inch fish in 110g planted tank, i have done it once before and never again.
The small loach school of 3 are all fine other then the 1 and my school of 20 rummys are fine except for him, any suggestions?