Ok, I have a 30 gal tank, maybe alittle bigger, with some african cichlids in it. I have a under gravel filter with 2 different external filters on the outside of the tank ( the ones that hang off the side). My problem is that I have bubbles at the top of the water. The bubbles are coming from the undergravel filter. The bubbles look like soap suds, but the tank has been up and going for 2 months. this just started last night. i keep trying to rake the bubbles off the top, but then a couple of min later, the bubbles are back :sad: . What seems to be the problem and how can I correct it.
All help is very much appreciated.
Thank you for your time.
All help is very much appreciated.
Thank you for your time.