Where is the better position to place 2x6101 in a 130g(72x24x18) Pulse?, % of power?I tried what they recommend in the instruction.One in the back of the right glass and the other in the front of the left glass so it makes a counterclock current,pulse 1.5 sec(30%-100%,30%-80%).I had to put the 15v jumper because it was stressing the nearest coral.I am not very impressed with the result and the grounting of the pump is killing me.I tried to put the pump deeper,it's better but there was a sand storm...Do you have other options?