I want to add remote sand bed to my system,,or another refugium?,main tank is 180gal (will get old 75gal acylic tank to make it either remote sand bed or refugium?),what benefit will i get from doing this? and the proper way to do it.?
Dang I went with remote DSB's when I set up this tank as kind of a experiment, but decided to take them down when they were turning into a detritus fall out settling tank. I would suggest a refugium well set up with maybe an 1 to 1 1/2 inch sand bed. This will give you some of the denitrification you are looking for and keep you out of trouble.