Powerhead selection

[mushy coral]

My tank size is 67x36.6x40 cm or 26.38 x 14.41 x 15.75 inches (length x width x height). This tank will be an lps tank with lps on the rockwork and mushroom collection on the sand bed. Im using a pump with the flow rate of 2000l/h (~530 gph) and its making a current above the layout, hit the glass and flow down the sand bed on the rightside, making these craters at the base of the rocks (attached image) so im assuming that its strong enough. Question is for this tank should i get a mlw20/ sow8 (~2300-2500gph) and put it on the right panel and facing the in take. Or get 2 mlw10/ sow4 (~1050gph) and put it one at the right side pannel and on the back glass below the nozzle and flow to the front (circle spot)? Or maybe one mlw10/ sow4 is enough if placed on the rightside glass?

 

[Mr. Mojo Rising]

Personally I would get another small powerhead to aim it against the return to create random flow patterns. With only one source of flow, you will always get that one-way circular flow motion of the flow going up and down the glass. IMO, good luck

 

[Finn450]

I think 2 MLW 5s would work...If this were to be SPS, I'd go with the 10s. I've had best results with gentle flow for LPS.

 

[mushy coral]

So I should get 2 powerheads and put 1 at the opposite of the nozzle to make random flow and 1 slightly down and to the left of the first powerhead to make a current through the front of the tank ? And how the flow rate for these 2 powerhead? Thanks in advance

 

[Finn450]

yes, 2 powerheads...placed as you have pictures. One opposite return, one lower left....adjust power and wave pattern to work with your aquascape. The 5s are up to 800GPH.

 

[mushy coral]

yes, 2 powerheads...placed as you have pictures. One opposite return, one lower left....adjust power and wave pattern to work with your aquascape. The 5s are up to 800GPH.

Thanks!