I currently run an Eheim 1262 on my 75g. My original plan was to simply move it over to my new setup, but, as I'll be running both setups simultaneously I will need another pump on the new system to get going.
Initial thought was to just grab another Eheim 1262...and I still might. But before I do, what are some other thoughts?
The new setup will be 180-220 gallons in the main tank and probably 70+ in the sump (guestimating right now). I will have a split return and do not plan to power anything else off of the return, though it is possible...
First, internal or external?
I like the idea of external because it takes up no room in the sump and adds less heat to the overall setup. But...
External also results in the use of more bulkheads and seems like it would be more prone to leaking. It's also, it seems, more expensive.
As far as external brands go, it seems like a lot of people really like Reeflo, but the more I research the more I find problems with leaking and having to change out the seals way too often.
I figure the first question someone's going to want to ask is: "How many GPH do you want to run through the system." Answer: "Um...I don't know...enough?" I really don't plan on doing super high volume through the sump, but I do plan to have the returns be a part of the flow of the tank.
I plan on having a chiller setup with this tank, which I (hopefully) won't need much, but, given a strong enough return pump, I could divert some of the flow through the chiller rather than having a separate pump for that. I will also likely split off part of the return to the refugium.
Let the vast array of disagreeing opinions commence!