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    Wavelength-specific intensity drop for flourescents?

    Hood & bulbs I have used T-8's (HO) driven by an older Motorola design electronic ballast that is not made any more, that I can tell (they were sold to Osram a few years ago). I bought 8 of them, using 6 banks with 2 spares. The ballast has a ballast factor of 128 which overdrives the bulbs. I...
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    using a Plenum in a aquarium

    Summary and thoughts What I see emerging here is a recurring theme of limiting nutrients, which is not new to the hobby. We seem to all be in agreement with this. In studying biology as a hobbyist, student and professional there is a recurring theme that mostly repeats what we have observed...
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    using a Plenum in a aquarium

    Bigger I always envied others that had 180's. Now I will have a 185!
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    using a Plenum in a aquarium

    Modular remote substrate refugia I have 6- 10 gal. aquariums, which will fit nicely under my 125. After we complete our move to a new home, I am going to try it. This will probably not happen for a few months at least.
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    using a Plenum in a aquarium

    Great idea MikeS I like this man's way of thinking! You bring up a great point. The oceans are not static and neither should be our tanks, as much as we may like them to be. What if we set-up a series of refugiums, one every couple of months. All connected to one show tank. For arguments sake...
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    using a Plenum in a aquarium

    processing waste I disagree with how waste is processed in marine environments. Yes dilution occurs. I believe this is significant only on a local scale (ie-near the reef). However, on a large time scale dilution becomes irrelavent. Why? Because the oceans are finite, and the nutrients are...
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    using a Plenum in a aquarium

    The ubiquity of sand beds With the exception of diving deep vertical reef walls, all of the 'tropical coral reefs' that I have had the pleasure to dive have had sand near by. Yes some bottom areas are rocky in places, but sand is an inevitable result of combining coral and entropy. If they do...
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    using a Plenum in a aquarium

    More on plenums I do not dispute that plenums may have merit. Mine worked fine for over two years. I have simply related my story and experience with a system I built using a plenum. Incidentally I used the 'special reef floor grade' aragonite that was all the rage at the time. I still have...
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    Better pic of mystery goby... Anyone?

    Does this look familiar? I found this after googleing 'sailfin goby', there are a few others at this site too- http://www.saltcorner.com/sections/zoo/fish/gobies/amblyeleotris/Aperiophthalma.htm
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    using a Plenum in a aquarium

    Ps- If you want to enhance denitrification, I suggest mixing up some calcium acetate and adding it to your top off water (if you have a fair amount of live rock especially). It is inexpensive, easy and safe. It works and solves several problems simultaneously with no negatives that I have found...
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    using a Plenum in a aquarium

    Plenums-my experience I once set up a 125 with a plenum, dual overflows, skimmer, small carbon use in an Eheim cannister, 12 x 36 inch T8 HO flourescents (no, not VHO's)- 6 rows custom designed and built by myself, about 100 or so pounds of live rock with aditional base rock added for the...
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    Harlequin Shrimp Babies?

    eggs? Yes, those be shrimp eggs! Hope they are fertile, and survive the acclimation process, and a few live to grow large enough that you can save them.
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    Need help IDing weird sponge/coral looking blob

    ID help Hi there. I am new to reef frontiers but have been in the hobby 30+ years. I saw your post and wanted to add my 2 1/2 cents. I would suggest that you also might consider if this is a 'sea squirt', also more properly called a tunicate. They are related to sponges as I remember (phylum...
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