Hey Pun I appreciate the suggestions, I tore it down completely I think ill just stick with the nano till I know if we have to move. We will know by Thanksgiving so that will be my decider.

As for the flow this tank had beyond enough or at least I thought. I was running 2 rio's one and 2 massive koralia 4's I believe they are plus the skimmer pump. The rio's IIRC I havent pulled them to ck again were a 1700 and either an 11 or 1400 as well. there were outflows at either end as well as the 2 Ph's there was a rip wave in this tank. And it has been happy for well over a year. I really cant put my finger on what happened to be honest. Whatever it is its done and dealt with now.