Input please

[Oldeng56]

Starting to plan a 75 gallon mix reef. 40b sump https://www.ebay.com/itm/163843401933?ul_noapp=true return danner mag drive 950, pf-800 overflow. i need to pick and plan room for ATO am i on the right track ?

 

[Snoopy 67]

Yes, but just realize mag pumps put heat into the water & are only so ,so on electric consumption.
I would look into a Varios DC pump.