got a whole lotta little guys in my tank

should i be concerned about these lil lads or should i just leave them? theyre tiny and crawling all over the glass, this is the best photo i can get, allll of the little specks i figure theyre beneficial microfauna but i thought id ask

should i be concerned about these lil lads or should i just leave them? theyre tiny and crawling all over the glass, this is the best photo i can get, allll of the little specks i figure theyre beneficial microfauna but i thought id ask