2 sumps or one

[Ben A]

I am adding a 30 gallon frag tank. I currently have a 120 DT with 40 gallon breeder sump. I have an apex on the DT as well as a duel BRS reactor. I am trying to figure out if I should run the frag tank into the same sump as the DT or have a dedicated sump for the 30 gallon frag. Any advice or thoughts?

[Rosco's Reefs]

that is my plan as I build out my tanks. I am, however, moving from my 40 breeder sump to a 75.

[treesprite]

I would make it a separate system. That way, you will limit your losses if either the frag tank or the main display gets some pest, pollutant, or worse, completely crashes.

[Ben A]

Seeing as my new gold nugget maroon clown pair and fungia collection are in the 30, I am highly considering that option.

[GraffitiSpotCorals]

It's up to how much work your wanting to do, I got tired of running two seperate systems and combined them.

[Crob5965]

I'm working on switching from a 4' 90 to a 6' 125gal I am planning on hooking up a 40B frag tank underneath and I was looking at adding a 55gal sump but I may just convert the 90( know it's overkill but I already have 1) 

 

I plan on running both into the sump so maybe a 90 gal is a good idea lol, I'm sure 55's would work just as well if you can fit your skimmers and stuff in one 

[John Ford]

If you are fragging from your own system I would keep them the same. Keeps everything acclimated and stable.

[Sharkey18]

Run it to the same sump. Increased water volume is more stable. 

[Jason Rhoads]

treesprite brings up the best reason why you would want to run two separate systems. I would run them to the same sump as others mention.  For me, the larger water volume and stability that brings is reason enough. 

[saltwaterfishman]

Run it to the same sump. Increased water volume is more stable. 

I agree, the more water volume, the less headaches for you.