Wave Maker size.

[Mike7744]

What size gallons per hour wave makers should I put in my 125?

 

[Dragen Fiend]

It comes down to what sort of coral you plan to have and dimensions the tank is.

If it were me seeing as you have the rim 125G from petco. I would at least do 2 Jecod DMP-40s. or 2 Jecod DMP-30s and mix in some 10s for any dead spots or needed flow.

But flow is tricky until I know what the aquascape looks like.

 

[Mr. Mojo Rising]

I usually recommend a minimum of 20x turnover, so that means 125 x 20 = 2500gph. IMO 2 powerheads are always better than one, so that means 2 x 1250 gph. Again, this is minimum IMO and a good starting point. It depends how your tank is stocked and how full it is. My tanks run at about 30x-40x turnover. Personal preference also has a lot to do with it.