Options:
1) Point them so they sweep past as many corals as possible or where your corals will grow into. For example, if you have a wall place them at one end and point them along the face.
2) If they are not on wavemakers, point them so they set up a circular current throughout the whole tank. Usually this means upper back corner pointing along the back face of the tank but with a center overflow box that might not work so well.
1) Point them so they sweep past as many corals as possible or where your corals will grow into. For example, if you have a wall place them at one end and point them along the face.
2) If they are not on wavemakers, point them so they set up a circular current throughout the whole tank. Usually this means upper back corner pointing along the back face of the tank but with a center overflow box that might not work so well.