Zero Mech Filtration Method

[Stoli]

NOTE TO ALL. THIS IS NOT A SKIMMER V. SKIMMERLESS THREAD!!

I'd like to hear experiences, good and bad, with very limited or no mechanical filtration.

I've been running my 90 gallon reef for a little over a year now. I have about 110 lbs live rock, a dsb with a jaubert plenum and a sump. I don't use any filtration other than the rock, dsb and plenum. I keep a medium fish load of 8 small to medium fish. I have several SPS, LPS and a couple of leathers, three clams, along with zoo's and other assorted inverts. At the moment, everything appears healthy and growing. I feed regularly but on the light side with homemade food consisting of marine fish, algae, shellfish, selcon, baby vitamins etc. I also dose dt's I'm in the midst of a cyano outbreak but it doesn't seem to be negatively affecting livestock. Major readings are nominal including Nitrites, Nitrates, Ammo, and phosphate. alk/CA governed by a Korallin Reactor and maintained about 400-420.

While I believe my livestock is well cared for and currently quite healthy, I am beginning to think more about old tank syndrome and other such hazards. I have a brand new myreef skimmer sitting in its box and I can't figure out a reason to install it. I have a great sump that will nicely support various filter media but again, why if everything is happy?