Which pump for curing dry rock?

[Easto]

I have 50lbs of Pukani rock. It's been in bleach and acid already.

Currently it's sitting in a 125L Rubbermaid container. I'm making my first batch of RO/DI water so I can get rocking.

I have a Maxijet 1200 pump that came with my BRS dual reactor.

I also have an Eheim 1262 pump that I plan on using for my tank when the rock is done curing.

Which of these two should I use in the Rubbermaid for water movement?

Will the Eheim be too much? MJ too little?

[hillegom]

If I had nothing else, I would use the MJ dialed back
You just need some circulation, although more is better than none.

[Coral Hoarder]

Both!

[Easto]

So far I have the MJ going on one side. I think I might need another 1 on the other side.

I didn't put the Eheim in, but I would think it would be too powerful and shoot water straight up (possibly out of the tank??)

[gobytron]

I really like to blast curing rock...
It helps to get detritus out of the porous areas.

[Easto]

Is it ok to lay an Eheim pump on its side, or does it need to stay right side up?