autotopoff

Hi, from Montreal, Canada. I am new to this forum but not new to reefing. I have a 150 gal tank with 75 gal sump, mainly SPS, some LPS, Zoas, & a Kenya tree for good measure! Recently added the Reefbot Lab for automatic chemistry checks, Auto Aqua automatic water change/ topoff, PH W3988...

Hey guys I hope everyone is keeping safe and well during these times. Looking to order a ATO for my new Evo I think I’ve narrowed it down between two. the Tunze Nano and the H2Ocean. is one any better than the other? Or is there another i should consider. If you could explain reasoning behind...