Hi Mike and all,
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TG Dr. Ron has already addmitted that dsb's dont export and merely act as recycling centers. So lets not bring him into this conversation, he is the one that got us hear in the first place.
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I don't think we can leave Shimek out of this post. My understanding is that he and Rob Toonen are the biggest promoters and proponents for DSBs and considered experts on them?
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I tried the remote DSb also, its pretty much the same thing as ones in the tank, with the exception that you must make sure you gett all the food and waste from the tank into them in order for them to be effective.From thier all the same rules apply. his size comment was basically if you have a 90 gallon tank and a refugium with a remote DSB it must be the same size as the tanks surface in order to be as good as one in the main.
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Mike, those weren't the comments I read by Shimek. Here are some of his comments from;
http://reefcentral.com/forums/showth...agenumb er=1&
"Without specific feeding of the remote bed, it simply will not be functional enough to work well over time. This means you have the ridiculous situation of specifically feeding a sand bed whose original purpose in the main tank was to get rid of excess food."
"Having a bit of sand in a refuge tank to provide some habitat for sand dwelling animals is fine, but it ain't a DSB and shouldn't be considered as such."
"The problems is that it is effectively impossible to get most of the detritus and excess food from the main tank to the remote one. The particulate food will lodge in and amongst the rocks, etc., and not get transferred. If that material doesn't make it to the bed, the organisms in beds starve and the bed loses functionality. The amount of water movement needed is really impossible to reach. Given the overcrowded nature of reef tanks plus the heterogeneity of the surfaces, there really is no way to efficiently flush the material to a remote DSB. If there were, it would work, but there ain't and it doesn't. "
gregt says; "a remote DSB is the worst of both worlds. The bed "starves" and the nutrients added do not get "absorbed" by the bed, therefore are available to do harm."
shimek replies;
"Hi Greg, Right on target! THANKS!!!"
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We can ignore all that, but I think it's important to the thread.