Hi bro out there, i have a 2ft tank, using it for almost a month, recently the water starts to cloud alittle and theres a bit a foul smell of fishes. Could it be due to the lousy filter? Cause the waterfall style filter has just a filter i do not noe what i contains inside but i was told theres activated carbon in it, is there anyway i can add more layers of filters to make the filter better and...
