View attachment reef system.pdf https://docs.google.com/open?id=0B4sjgoLX4edCWUZIWTBlSjdROTQ First off, yes I have issues, now right to the geeky stuff. Attached is a link and a pic of my system schematic I created to help when my first controller arrives later this week. There are positives to the system i.e flexibility and negatives i.e. too many parts etc. But honestly building and tweaking is a big part of the hobby to me. I am a big fan of technology just for the sake of technology. At any rate here it is, feel free to suggest improvements, or take any info away from it. If there is interest, I will post the details / Functions / logic for the reef keeper system once I have it up and running. I hope to use some cool functions i.e. different "top off" sources based on water parameters etc.