The tiny black specks on your floor could be a variety of things, such as dirt, dust, or debris. They might also be insect droppings, particularly from pests like ants or cockroaches. If they seem to multiply quickly or are accompanied by other signs of pests, it may be worth investigating further or consulting a pest control professional. Regular cleaning can help prevent their accumulation.
Put the cat on a clean, well-lit surface like a table or a clean patch of floor. Comb its fur with a fine-toothed comb. If you see little brown specks falling out onto the floor or table, and in the comb, then the cat has fleas. The little brown specks are flea poop.
Tiny black dots on a wood floor could be caused by mold, mildew, or insect droppings. It is important to investigate further to determine the exact cause and take appropriate action to address the issue.
Abyss
insanity
continental slope
CONTINENTAL SLOPE
continental shelf
The cat may have started sleeping on the floor due to a change in temperature, discomfort in its usual sleeping spot, or simply a preference for the floor at that moment.
Try to pump it to build up the pressure.
You can find it in Mistralton Cave (Third floor, same floor where you find the legendary pokemon Cobalion, on the ground) and on Route 10 (on the ground), but you can also rarely find it in dust clouds that sometimes appear in every kind of cave.
It can appear on any floor however it is more likely to spawn on large 5:5 difficulty furnished or higher floors.
You could use floor stripper with a floor machine with a black stripping pad on it