water movement

there is lots of surface movement in my tank and i have added Koralia 4 due to its depth, there is not to much movement lower down do you think i might benefit if there is another Koralia 4 to circulate the water more ?

 

A 4 might be a little much for your cube since you want it down low. I'd go with a 3 or maybe even a 2 so it's not blowing too much sand around.

 

HI, from your pic it appears you have it 3/4 of the way down. The return is giving some surface agitation so I am not sure what you mean. After looking at your aqua scape again something hit me, do not put any Tubo snails or anything that will bring down your "house of Coral". Big Turbos and some other creatures will get up in there and can dislodge rock and Coral.

 

You could wait to see what happens with your tank as inadequate flow will result in advection, diffusion, detritus accumulation in the benthic areas of your tank and also cyano or algae may grow in your substrate or on live rock.

 

oki thanks for advise guys

 

You can lower the Koralia and have it pointing slightly upward if you want more water movement down there without stiring up the sand. Just make sure it's not too close to the sand bed where it will get sucked into the impeller.