which one for the money, quality, flow, looks and longevity?

not sure about the tunze, but id recommend the vortech mp40w or at least the mp20. I have an mp20 and i crank it up to the max which probably is not the best. Id rathers to minimum mp40 then cranked up mp20. if you get mp10 maybe 2 so one on each side. but mp20 at least you can always upgrade.

tunze hands down for longevity & customer service.

i have a vortech in my nano now.. it's great when it's "working" .. when theres something wrong the CS is sketchy. i paid $275 shipped for my vortech mp20, the magnet is rusting, it locks up periodically (sometimes it takes a easy clean and it runs again.. sometimes it takes several hours to get it to work w/o locking up)

i got fed up one day bc i didn't have the time to tinker to get it to work again. so i ran the koralia for a few days. keep in mind i've only had the mp20 for like 6 months. i remember having to ship a brand new vortech mp40 back to them for service. it was a additional $18 added to the cost of the pump.

Go minimum MP20 for a 40 breeder. I say if you want a nice clean look go vortech but if you want some huge pump in your tank go tunze

i own both...but, i must say Tunze's CS is hands down one of the best if not the best...never any questions asked just resolutions...can't say the same for Ecotech yet...

Thanks for all the replies made my decision easier