TheMightyOscen
Aquarium Advice Regular
Hi, I have a 3.3 gal tank with a betta and two Borneo suckers. I started noticing an oily slick on the water surface and some one suggested that the water surface wasn't being moved enough. So I put in a temporary air stone and I have just bought a new filter (fluval u1). I got rid of the air stone as my betta wasn't really liking it too much and it was just taking up space, the surface of the water is moving much more now but the slick is still there. The heater and filter has been cleaned, there's no way it could be due to over feeding, the lights are on for a max of ten hours a day...but it just won't budge. I keep removing it and it keeps coming back. I do a 40% water change every 2-3 days and the tank is in my room. Could any one help? Thanks for reading