I've only had my tank for almost a week and after a couple days all of a sudden one morning there were bubbles all over the top of my tank (and they're not moving or popping; they're just sitting all over the top). The water doesn't seem to be circulating like it was - it seems much slower. Is there something wrong with my filter? Is this normal? Will it harm my fish? I don't want my fish to get sick or die.

my 10 gallon tank does that were theres oxygen bubbles that stay by were the water comes out of the filter

is this the tank with the beta?? if it is male betas make bubble nest at the top of tanks that dont move unless u destroy them.

Oohh ok! Yes, it's a male Betta.

more than likely its just him making a bubble nest. they do this when they want to mate. dont worry to much. its very hard to breed betas. but if u still worry take your fltration system and clean it and do a water change maybe 25% but i honestly dont think there is nothing to worry about just your little guy wanting a girlfriend