small pump for 2" hole on mixing drum

[slojim]

I'm looking at a 20gallon drum for saltwater mixing. It has 2 holes on top, both 2" diameter. I have some options for mixing, but I was hoping for a small pump that I could drop in the hole without any additional plumbing. Anyone know of one that would fit?

 

[slojim]

I'm thinking the sicce nano or koralia nano might do, just hoping to hear from someone who has done it.

 

[slojim]

I'll bump this up one more time. I don't have actual measurements yet, but I believe the nominal 2" hole is really 2 1/4" Still pretty small, but I think a few pumps fit in there. My alternatives to a submersible pump might be an externally run danner mag 2 or 3, or maybe even just an air pump and stone, with a long PVC lift tube to generate some flow. But since it is in my garage, and I tend to use some non-fish-friendly things in my garage, I'm leery of using an air pump for circulation. (certainly I can just shut it off and install the cap as needed - probably not a big deal)

 

[rob taft]

I use the Koralia Nano 425 for my mixing barrel. I just measured the OD and its at 2". I easily passed it through a 2 1/4" opening.

 

[slojim]

Thanks Rob. I just tossed one of those a few months back - the wire burned up but it was pretty old.

 

[slojim]

I had been looking for more of a utility pump than a powerhead. But I have a pretty small utility pump (its old, but I think its an mj) and it won't fit in the hole. But I remembered back in the back of my fuge there is a sicce nano stream 250. I fished it out and it fits in the hole. It looks like the 530 model has the same exterior dimensions, just a different impeller - so I think that's what I'm getting.