Airstone Needed In Male Betta Divided Tank?

[aly_starh]

as topic and also, would i need to ammend the filter in anyway. ie spray bar?

 

[kizno1]

yh a spary bar would be best because if the fillter just in one section then the other section wont get filltered

 

[pippoodle]

here's one of my 40litre divided tanks