65 gallon rimless cube

[bruno21447]

So looking for help and hints with plumbing by 65g cube. My last few tanks I have gotten lucky with not having to do to much myself to get them up and running. I just want to make sure I am doing everything right. So I’m going to be using a vectra s2. The holes are 3/4” there are two of them. I was going to do the drain and return at 1”. I was going through the stuff the guy that had it before me used 2” on the drain and 1” On return. What would you think would be best? As I go I might have to ask for more help. Thanks

 

[lapin]

Bigger on the drain since it’s gravity fed. Return is pressurized so more flow per diameter.