My 180 is now reaching a year old. It was started using the contents of my former 55 gal
tank, now commonly refered to as "the sump" . The 55 had a remora skimmer as its primary source of filtration. I made a tall diy
skimmer and used it for awhile on the 180, but discontinued all skimming about 3 months ago. Ive seen no adverse effects. My water leaving the tank goes through a diy
mechanical filter contisting of floss and GAC
. The sump has macroalgae growing in it, a ton of pods
and shrimp, and is lit 24-7. I havent tested any levels in awhile, but all the life in the tank is happy.
I dont really see the need to change anything right now, but could there be long term consequences of not skimming? Between the sump and the tank I probably have in excess of 250 lbs of live rock ans a couple hundred lbs of sand.