Love your Skimmer is it the 5 or 7, I have the 5OK guys i noticed detritus just sitting at the bottom of my sump next to the skimmer. So I decide to buy a little pump n placed it at bottom of sump to prevent detritus from sinking to bottom ..is this a good idea or should I remove pump n let the detritus sit at bottom n let build up ? Heres a picture to show how its placed in my sump with a red circle around it .. Was also curios to know how high my lights should b from the top of the tank ..I think my lights are around 8 1/2 ?