Circulation

[Sno]

Hey guys I have a 650ish litre bowfront tank with a wier going down to the sump in the middle, as this was the only place in the existing cabinet i could get away with having a sump. i have 4 koralia 5800 wavemaker's however they are bring up alot of sand from the front of the tank, i had two of them on the back wall pointing down into the live rock in order to move and free and debris or uneaten foods. and two on each side of the tank aiming towards eachother and along the bow front.

below I have mocked up a diagram of how they are basically positioned and where the sand has lifted and moved in the tank.




i have tried lifting the back wall two up so they arent pointing so downward however it kind of defeats the object of having them blowing arond the live rock and now are just aiming forwards however they are still blowing up the sand and are high up n the tank with a slight downward aim.

basically aswell as helping with the sand problem, can anyone help me with where i should position the wavemakers for the best results of circulation ?

[Pufferpunk]

Mine are pointing at the glass & it still bounces around enough to glow everywhere. I use a Seaswirl in the middle & actually, the flow is pointing up a bit. I recently added 2 large Korilias to each back corner, pointing slightly down, towards the front/center of the tank.

[geronimo69]

Play around with them. The tank has enough circulation, to move water everywhere, as PP said. You can probably even face one upwards to constantly stir the surface of the water to avoid the "film".

[Sno]

Thanks alot, ive re-aranged them now so that there are two on both side walls pointing towards the middle, the front two are aimed towards the front of the bow and the back to are aimed at the wier and into the rocks seems to be fine no more sand lifting up

however its blowing hundreds of lil mini air bubbles from my return pump all accross the tank, i'm not so sure this is a good thing as they are literally everywhere?