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  1. W

    Plenums and the wasting "option"

    DonW: A 3/8" diameter tube with 1/8" dia. holes in it, is only going to feed water "evenly" for something less than 9 holes worth of tube length( probably only about 6 holes ). I don't know what size of tank you are referring to here, but for anything over about one gallon, I think you would run...
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    Sand Stirring substrates

    It seems to me that Anthony is "right on", with everything that he has to say here. It appears that a "remote bed", aka refugium, would allow us to "grow our own" micro-fauna, infauna, whatever, to feed our fish and the "sand stirring" critters, so that the sand stirrers don't have to die of...
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    Plenums and the wasting "option"

    OK, so another "just too damn long" post from "the Wave". Sorry about that. Here, let's try this: "High frequency" is going to start out at 3 times per day with one pint per draw, for a total of 11 gal. per month, which is 1/3 of my particular water volume. :cool: Particle size is going to...
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    Plenums and the wasting "option"

    "High Frequency", is a necessary substitution for "continuous flow". Let's say for now, that the maximum wasting volume is 33% of the water volume per month. For my 34 gal. of total water volume, that is 3 pints per day. If the frequency was once per day ( and my tank has 270 sq. in. of...
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    Plenums and the wasting "option"

    Well Mojo, if "oolitic" is close to the "fine particles" you were having diffusion problems with, then I'm not surprised. High Frequency Plenum Wasting ( HFPW )will certainly cause a relatively even "flow" across the whole tank "footprint", and definitely keep your upper zone aerobic. This...
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    Plenums and the wasting "option"

    Too bad he didn't put more effort into it! Good luck > Wave98 ;)
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    Let's Talk About ~Algae Control~

    Aragonite sand is saturated with phosphate? Sand only, or aragonite in general? Please elaborate, this is very interesting. - - "Most" sands? Thanks, Wave98
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    Plenums and the wasting "option"

    All points well taken Mojo, and Thanks. ( read on ) :) Points well taken again "O Dark Lord". ( your avatar just "cracks" me up, by the way ) :lol: OK, here it goes! I'll tell you about my current system here, and future systems that are "waiting" for some "direction", so we can get some...
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    Plenums and the wasting "option"

    Hello all: I'm pretty new here and had gotten a "wasting type" of plenum installed before I graced the pages here at RF. :oops: I had come across the idea on another site, and then found some discussion here, that ran on for over a year, and then just sort of died without coming to any real...
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    Deep Sand Bed Rhetoric

    Dan: It sounds like you could be onto something here. The details of this might be a bit touchy regarding grain size, depth, and flow rate not to mention the "feeding" that you describe. You can, however, excercise some variation in the flow and feeding, so your size and depth aren't overly...
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    Substrate Particle size and DSB

    Mojo: What I'm looking for is one post "up". What my "plan is", is 7 posts "up". Beyond that it is still a matter of particle size and bed depth, as stated, and in the case of wasting It is also frequency and volume. Do read post #11 above, as this describes in great detail the starting point...
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    Substrate Particle size and DSB

    My interest in pursuing a "wasting plenum", or any kind of substrate for that matter, is twofold. Firstly, I am particularly endeared of pearly jaw fish, "goby-shrimp" symbiosis, and the habits of many other predominantly substrate dwelling creatures. Secondly, if there is anything in the...
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    Substrate Particle size and DSB

    High oxygen, low oxygen, and no oxygen. Nitrification, denitrification, and hydrogen sulfide etc. It looks like we might have to include live rock now in "substrate". Maybe even fish too! :lol: Predominantly: nitrification > high Denitrification > in the middle Nasties > farther...
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    Substrate Particle size and DSB

    Mojoreef: According to Goemans and Gamble, it is first "aerobic" at or near the surface, then "anoxic" ( low oxygen ), and then below that is anearobic ( No oxygen ). Anoxic is a transitional zone between aerobic and anearobic. They were the first that I know of to discuss the existence...
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    Substrate Particle size and DSB

    Thanks MikeS: I thought maybe you guys went to Hawaii and just stayed there! :lol: You know, this is starting to sound like a discussion. Kind of scary, huh? You, Mojo and many others here know w-a-a-y-y more than I do about this, and I appreciate your help and response. ;) Advection >...
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    Substrate Particle size and DSB

    MikeS: According to Goemans and Gamble it is the Anoxic zone that supports faculative bacteria and nitrate reduction, and not the anaerobic zone, albiet contrary to popular belief. The authors consider the anearobic zone to be a source of nasties and claim that the plenum "extends" the anoxic...
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    Let's Talk About ~Algae Control~

    MikeS: Thanks for your reply. . I agree with you entirely about the lights and the nutrients. I was only saying that they are less than adequate for the sps in the tank, and that the tremendous and immediate reduction of hair algae in the tank was from the crabs and snails, and not from...
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    Let's Talk About ~Algae Control~

    Sorry Don: It seems that I didn't give you enough information. You are right about fertilizer though and the salt won't help on a golf green either. I did not buy the goat though, he was already there. There wasn't any grass either. I bought some rocks to decorate the yard and grass started...
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    Let's Talk About ~Algae Control~

    . I have a 27 gal. hex tank with 6" of substrate on a plenum and a very high bioload. I am jumping on with Jiddy here regarding snails and crabs. Phosphate is at .3 and nitrate at 20 ppm. I am running 96 watt pc's which is a lot shy for the "sps", but "boy" can they grow a lot of algae! . The...
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    Let's Talk About ~Algae Control~

    .3 phosphate, 20 nitrate, - - lots of crabs and snails > no algae ( still working on the nitrate ) :D
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