SLW 10 or SLW 20 29gallon tank

[SM37]

Hello everyone, I hope you all are doing well!
I’ve got a question about power head size. I’ve got a 29 gallon aio jbj tank. The display is 12.5” wide by 17.5” long by 18” high.
My question is should I get a SLW 10(1056 max gph) or do I get a SLW 20(2641 max gph) and run it lower? I think I would run it the length of the tank vs putting it on my back wall. I’m not sure.

 

[SM37]

Here is my tank. I’m working on the GHA on that one rock.

 

[Mr. Mojo Rising]

I would get 2, 2 pointed at each other is much easier to generate random flow through the tank with less dead spots. Only one means it will be a one way linear flow with several dead spots. Just my 2 cents.

 

[SM37]

I was thinking about that. I do have one real small power head that blows a constant stream. I may just go for the two SLW 10s. I do think the 20s may be a bit much for my tank. I only have three sps and they are happy as is. I am definitely trying to get rid of dead spots as of right now I’ve got a couple.

 

[Mechano]

Get the 10’s. The 20s will be a bit much for flow.
I have 2 in my system and I haven’t serviced them in literally a year and still work great.
They are cheap and I keep a spare around as well.