Setting up ATO QUESTION

[AlexInverness]

I bought a hydor smart level ATO, my question is what pump do I pair with it ?
It's a 150 gallon tank with 50 gallon sump

 

[Esquare]

I've never used that system but with my Tunze ATO i have used https://www.bulkreefsupply.com/replacement-metering-pump-for-tunze-osmolator-5000-02.html
and
https://www.bulkreefsupply.com/brs-top-off-doser-50-ml-per-minute-1.html

 

[rocsec1]

Does that system have a outlet that turns on when water is needed? If yes then any small low flow pump would be fine.

 

[AlexInverness]

Ok cool, I think I figured it out, thanks!