265 gallon setup

[niloc16]

this is the latest i have right now. tank is really really struggling right now and i have NO idea why. i'm fighting a massive dark black cyano outbreak and its REALLY starting to get my PO'd. i'm waiting on new bulbs to come in and i'm praying thats it because if its not then i'm lost at what else to do. i was saying the other day that if the tank wasnt so damn heavy when its empty i would have shut it down and quit by now. guess i started to vent sorry