Great news!!!
Try not to squish them with the moss ball while cleaning because they really love hiding on the sides, under it or even rest on top
When I was cleaning once, I took the moss ball out, then I counted the corys and I was short one. Found it dried on the moss ball which I had placed outside the water. It must have been on top of it
But they do use it as a cover so I kept using it, plus it collects tiny microfauna they feed on.
Try not to squish them with the moss ball while cleaning because they really love hiding on the sides, under it or even rest on top
When I was cleaning once, I took the moss ball out, then I counted the corys and I was short one. Found it dried on the moss ball which I had placed outside the water. It must have been on top of it