Have recently acquired a Channa Andrao, I understand that snakehead need little water changes, around 3 a year? As I have mine in a 50litre tank housed on his own, what would you guys recommend as filtration? I have a small filter in there at theoment which keeps the water nice an clean, should I look into a small canister filter as this would keep more of the good bacteria etc in the filter as it requires less cleaning?
