Leighbraz
Well-Known Member
You have to look at the lpm rating if you divide that 200 or 250 by 60 mins you 3.3lpm or 4.2lpm for the 250 those fish tank ones will end up giving you root rot. DO ( dissolved oxygen) is the number one preventive action to keep root rot at bay.
I'll have to upgrade to one of the little commercial pumps I reckon, thanks for your help mate