Hey guys, I have a question about the bio-wheel on my filter. I have a 29 gallon reef set up, with about 35 lbs live rock, 20 lbs live sand, 4 small fish, and assorted corals. I have a bak pak protein skimmer, and an 18" hob fuge that I keep a 4 inch sand bed, some live rock, and macro algae in. I have the (I think, I'm at work so I cant check) 175 Penguin Bio-Wheel filter. I have heard that these things are nitrate spounges, and that they re-release nitrates into the water. I change my water about every 1-1/2 weeks to 2 weeks, and do about 4-5 gallons. My nirtates have still been about 25-30. All my corals seem to be doing great, my xenia is spreading like nuts. I have a good clean up crew, serpant star, about 20 blue leg hermits, 20 snails, 2 scarlet crabs, and an emerald crab. I have good water movement, coming from the filter, the bak pak return, the fuge return, and also a zoo-med powersweep. Can I take out the Bio-wheel? The thing never seems to acutaly move, so its kind of the bio-sit there nitrate sponge. Can I just take it out, or would that create a ammonia, and then nitrite hike? I also change the filter pad every time I change the water, so the nitrate doesnt build up there. Thanks...