I have only a shrimp and a sand goby. Here is the screen that was build 1 month ago and every week since then I have to wash.
It helps me to clear the brown algae leaching from my dead rocks.
It will kill all the good and bad bacteria or organism that flow through the UV. It does help to stable the water but it may not kill all the ich as it may still be in the main DT and fishes body.
Bro kent, would you think a 4-5ft refugiurm will be able to take over the sump and absorb all nutrients from the main DT. What do you think, would you explore or still use the human gadgets to export nutrients?