Turf scubber?

Dr. Adey's work is admirable, and I watched his setup at Smithsonian's Natural History closely as long as it was there. But experimenal results under optimum conditions with maximum light and what can be easily and practically obtained at home are two entirely different things. Plus there are many practical drawbacks to pure algae bed filtration - water coloration being a biggie in my book. The feedback of algae to the display is another issue if there is any significant level of lighting as well. The DC setup was impressive, but I would not have put up with that water for a single day. It kept a lot of grad students employed, was interesting, likely informative to the general public as there was a lot of good material with it, but as a practical application it was pathetic. I do not at all deny that his work is good, but it is not an easy or IMHO practical application. For SW I'll take a 24/7 macroalgae refugium any day, and for FW I'll take emerse vascular plants. If you want more refs, check Tom Barr's site, they are bound to be there, but I have not searched. I do know that he agrees with me strongly on FW veggie filters. Algae beds are IMHO & IME a technique still looking for an application.

BTW, my first SW invert tank, way back in my bachelor days, was filtered by an algae bed the same size and better lighted than the display. Algae beds are not new.
 
Personally I think there is room for improvement in algae scrubbers, as to applications I don't know either. I was not implying that you were doubting Dr Adeys research, more so the point I was trying to get across was that micro algae has a nitrogen uptake far superior then its higher plant rivals or macro algae for that matter .Granted micro algae is not without its problems, as is macro algae. Again I don't have any experience on veggie filters so I will not comment on something I dont know about, but I am to the understanding that they also have there problems too, I am going to check out Toms site I might add. I suppose its everyone to their own.
Btw I believe Dr Adey has been using algae as a filtration method for more than 25 years. :)
 
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