I just recently moved my filter so that it would move the surface water, had issues with spot on surface resembling oil and it's seem to have cleared it up, but now a new issues... When the stream of water hits the water heating and side of the tank, it's making quite a lot of bubbles... and i mean a lot, as if somebody poored dish soap in o.O
I dont notice any smell of soap, nor do i smell anything else. So is this a common problem, or do i need to change my set up?
P.S. - I use carbon and polyester pads and i do rinse them before use.
