I think thats where i messed up...the tank has only been running for about 4 days.....dang...so i guess it's my fault. I had no idea i needed salt in the tank....i have a 10gallon standard tank....filters running good, clean.Tanks nice and clean, i guess it could be the levels....i don't have a water tester yet..I did put one TBl spoon of aqua safe in the tank when i first set it up..