Minimum oxygen for PBass?

[FishDojo God]

Is there a way to know, calculate dissolved oxygen without a electronic device?

Is flowing water dropping from 25 cm in tank and two airstone sufficient?

 

[silverdragon]

How bigs the tank?? Oxygen is brought into the water once the surface of the water is agitated, depending on the size of the tank, water dropping from 25cms and 2 air stones sounds sufficient..

 

[cl0wn knife]

just add more oxygen with ir pump n stones

 

[catfishlover106]

the more the merrier...just have alot of oxygenators to keep a high supply of oxygen for your pbasses...I have to have alot especially since my tank temp. is at 86-88 degree's...less oxygen content from higher temps