Mb7640
New Member
I have a 125 gallon tank with 2 blood parrots, one angel fish, 2 electric blue acara, 2 corresponding, red tail shark and 2 Geophagus sveni and 2 chocolate cichlid. Currently I'm using 2 fluval 407s. I was using the online fish calculator and it says I'm lacking in filtration. I'm thinking of replacing one of the 407 with a fx4. That way I will have a fx4 and a 407. Wanted to hear what people think. I was looking at a fx6 but it looks like it will not fit in the cabinet since it's 24 inches inside. With the fx4 and 407 my filtration will go from 72 percent to 126 percent. The chocolate cichlids are still small at 2 inches