Hi, what do you think is the best pump for a sump filter, my tank is about 500litres but i want the tank to be over filtered as youu really need for oscars. Could anyone share their opinions with me as to which pump is the best, Thanks everyone

the one you make yourself

I've got a couple of these little babies in my sump and they seem to do the job really well.However, my tank is 300 gallons so you will probably get away with a less powerful one. But, if you want reliability, you can't go wrong with eheim

www.charterhouse-aquatics.co.uk/catalog/...280-ltrhr-p-267.html

i can not imagine the cost disparity between an eheim and an unknown
brand here in my place. eheim cost around US$ 156.25 as against other
brand of same capacity at US$ 10.50 per unit

lol i know right paul! i have a well pump that cost 75 dollars that will flow 7500gph lol.

I like my DIY central heater pump...



Can generate up to 10 Bar...
But at max power that'll probably flush my fish into the overflow!lol