Do I need to account for sump size when choosing a skimmer?

[WonkyWapiti]

If looking at a 75 gallon tank such as the IM INT 75 which comes with a 39 gallon capacity sump, should I be looking at a skimmer which can support 75 gallons or do I need to look for a larger skimmer that takes into account the extra capacity of the sump? I attempted to search for this answer but did not see anything specific to what I'm asking.

 

[Sisterlimonpot]

It's because it's not that big a deal. Skimmers have ballpark ratings, there's not a big risk of being undersized or oversized.

With that being said, going bigger is always the best approach.

 

[MrGisonni]

That's a really big sump. You might want to try for a smaller sump so you can fit an ATO reservoir, your dosing pumps and solutions as well as test kits etc. But no, really match the skimmer to the display. I have a 7 gallon sump and a 4 gallon ATo reservoir on my 30 gallon IM

 

[00W]

I add all the water volume together.
I go by the adage that a skimmer will do half of whatever it is rated for.
Just me.
Hope that helps you.

 

[WonkyWapiti]

Ok, thanks guys. @MrGisonni the sump is a package deal with this tank it appears. I have also been looking at the 50 gallon tank. Here is a link to the tank I'm talking about https://www.innovative-marine.com/shop/INT-75-Gallon-Complete-Reef-System-–-Black-p533177047

 

[vetteguy53081]

If looking at a 75 gallon tank such as the IM INT 75 which comes with a 39 gallon capacity sump, should I be looking at a skimmer which can support 75 gallons or do I need to look for a larger skimmer that takes into account the extra capacity of the sump? I attempted to search for this answer but did not see anything specific to what I'm asking.

You want it to support tank volume, not sump volume

 

[MrGisonni]

The tank is beautiful, but once you get deeper into the hobby space will be at a premium. There is a lot of wasted space with that giant overflow chamber and huge sump that you will wish you had available later. Keep looking. I love my IM aquarium and aluminum cabinet. They are top notch. There are different options. My sump is a seven gallon aquarium with a filter sock, skimmer, brightwell export blocks, a heater and my return pump. Nothing fancy at all.
Here is my prefilter box on my 30 for example

 

[WonkyWapiti]

Thanks everyone, and @MrGisonni thanks for the info on sump size. I'm still in the planning stages getting back into the hobby after being out for a long time. I know I have a max 36 inch wall space to put the tank so my upper end is pretty much a 75 gallon but also debating on going a tad smaller as I've been impressed with a number of 50 gallon IM builds here. Everything seems to be about give and take when looking at real estate within the cabinet.