u/InfiniteFlounder7543

What should I do about this stand wobble? 29 gallon tank is completely filled with water, and the stand is completely tight and leveled with the adjustable feet and shims. This is all just super annoying because every stand I’ve had has wobbled like this.

Last night I noticed my Angelfish was breathing heavily, and was although he usually eats like a pig he didn’t want to eat anything. Just this morning he’s had this long white stringy poop coming out.

No Ammonia, Nitrites, or Nitrates that I could see

I did notice he had a scale-sized white spot on his side for a brief moment over the last week but I’m unsure if that has anything to do with it. My bristlenose plecostomus has had a white spot on his fin for a bit but I always thought that could be an injury, but since it hasn’t gone away I’m thinking they could be related.

All pictures taken during different weeks. I’ve been told to take it slow since he’s acting completely normal, but I’m getting worried since I’m seeing some white patches on my Angelfish too.