My 55 Gallon Tank

Well.. Ive been detached form 3reef for a while mainly because of the summer and a little detached from my tank and some how thing started to go down hill got an algae bloom, and I figured out that i needed more flow in the fuge. So now that's fixed. But yesturdy the Diamond goby died. But I know what happened I was aready behind shedule went i fed my tank last and the goby didnt eat that day because he wasnt present at the time. i will Bbe getting another soon.