About ready to throw in the towel with this bout!! Cant seem to get rid of the H/A.

Feeding very little once a week.
Doing water changes weekly
Turned light cycle down to 6 hrs
Running GFO and some carbon

Thinking of sucking sustrate out and putting a skimmer on?

I have a 28 gal JBJ
LED lighting
MP 20 for flow
plus the 2 stock returns for flow and filtration.
Tank has been up and running since July 2010

Have not even thought about putting any new Corals in till this problem goes away! (No interest in adding anything)

Anyone no of a good Nano Skimmer? Dont want garbage.