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#1
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Hi
I wonder if any Aussies out there can help me source cf for my planted tank? I want the high light output .Thanks Grae whitegm at optusnet dot com dot au |
#2
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![]() "Grae" wrote in message ... Hi I wonder if any Aussies out there can help me source cf for my planted tank? I want the high light output .Thanks Grae I am researching this very thing myself, seeing I am about to set up a new 122cm(4ft)/200L(50G) very shortly. I get the tank itself on Jan 05 /05 and because I am "between jobs" I have to research a lot and find the best prices: Optimally I would like a planted tank containing a variety of Tetra (Black Neon, Hockey Stick, Serpae, Head and Tail Light, Congo and perhaps Cardinals), 6 Giant Danio, 6 Boezmani Rainbows, 4 Flame Gourami and 3 Paradise Fish. My experience so far: I was going to build a tank hood for the new tank out of dressed pine I managed to obtain from an old packing case for a sign, but the cost of the tools I need are too much for someone of my means - I have settled on a Thorn 2 tube 36W "hood" (Ref: TBAR236), which was recommended to me by my local Electrical supply guy. It's going to cost A$38.50 all up and it comes with two T12/8 tubes, which I presume are standard 3400K tubes. Bunnings near me carries a few specialty tubes and I've settled on the NEC HG Aquarium type (A$23.96) and a Philips Aquarelle (A$18.94). I've settled on this combination for cost, plant health, lumen output and appearance reasons - The Philips tube, according to my spectral information on it is a little lacking in the red end of the spectrum, as it seems to be peaking more in the orange/yellow. The NEC has definite pronounced spikes in the red, so my logic says that combining them will give me the lumens (they are both tri-phosphor I believe) and a fair degree of longevity over this period. If the Neons don't light up as I expect them to do I am going to add a computer type blue cold cathode to the hood later (about A$20 from my local computer store). This fish thing is also determined by the incidence angle of the light, so some experimentation will be in order. I noticed my Black Neons and Hockeys absolutely fluorescing like mad yesterday when a shaft of afternoon summer sun made it into the tank - it's incidence angle was very low (the sun was setting) but they looked magic!. The two 36W tubes will be on one timer (A$5.98 from Bunnings), and the Cathode will be on another so I can stagger the on/off times and hopefully not stress the fish. I plan to run the fluoro part 12 hours per day, and the cathode as needed. As for the hood; it's already got a matte white reflector surface inside but I intend to make this as reflective as possible, and in the process alter the side angles using styrofoam inserts, so the majority of the light hits the water surface at 90 degrees or as close to it as possible. I am using some 3D ray-tracing software to trace the rays from the tubes, so I should get somewhat close to optimal. I have discovered a cheap mylar reflector too that's better than aluminium foil: it's the right time of year for it too! There is a type of Christmas wrapping paper sold in the $2 shops around here that has a pattern on one side and a mirror mylar back side - I plan to line the inside of the hood with this material using a photographic roller to get it smooth. My main worry with this is that the hood's ventilation may be affected (heat shortens the life of and dims output of fluoro tubes). I have a couple of spare computer fans lying around so I am going to modify the hood to mount these if heat becomes a problem. All in all, I reckon I'll get a good looking tank, that grows plants (I'm going the DIY CO2 route later as well), is pleasing to view and cheap-ish to run. By my calculations the whole tank should cost about $50.00 per year in electricity to run, which is a small price to pay for the enjoyment it theoretically will bring me. Oz |
#3
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Hey Ozdude
Are you in perth? Contact me if you are as i have a good place for cheap tubes.Plus i have some plants i could share .use my yahoo address , i tried ur hotmail one but it bounced..... Graeme "Ozdude" wrote in message ... "Grae" wrote in message ... Hi I wonder if any Aussies out there can help me source cf for my planted tank? I want the high light output .Thanks Grae I am researching this very thing myself, seeing I am about to set up a new 122cm(4ft)/200L(50G) very shortly. I get the tank itself on Jan 05 /05 and because I am "between jobs" I have to research a lot and find the best prices: Optimally I would like a planted tank containing a variety of Tetra (Black Neon, Hockey Stick, Serpae, Head and Tail Light, Congo and perhaps Cardinals), 6 Giant Danio, 6 Boezmani Rainbows, 4 Flame Gourami and 3 Paradise Fish. My experience so far: I was going to build a tank hood for the new tank out of dressed pine I managed to obtain from an old packing case for a sign, but the cost of the tools I need are too much for someone of my means - I have settled on a Thorn 2 tube 36W "hood" (Ref: TBAR236), which was recommended to me by my local Electrical supply guy. It's going to cost A$38.50 all up and it comes with two T12/8 tubes, which I presume are standard 3400K tubes. Bunnings near me carries a few specialty tubes and I've settled on the NEC HG Aquarium type (A$23.96) and a Philips Aquarelle (A$18.94). I've settled on this combination for cost, plant health, lumen output and appearance reasons - The Philips tube, according to my spectral information on it is a little lacking in the red end of the spectrum, as it seems to be peaking more in the orange/yellow. The NEC has definite pronounced spikes in the red, so my logic says that combining them will give me the lumens (they are both tri-phosphor I believe) and a fair degree of longevity over this period. If the Neons don't light up as I expect them to do I am going to add a computer type blue cold cathode to the hood later (about A$20 from my local computer store). This fish thing is also determined by the incidence angle of the light, so some experimentation will be in order. I noticed my Black Neons and Hockeys absolutely fluorescing like mad yesterday when a shaft of afternoon summer sun made it into the tank - it's incidence angle was very low (the sun was setting) but they looked magic!. The two 36W tubes will be on one timer (A$5.98 from Bunnings), and the Cathode will be on another so I can stagger the on/off times and hopefully not stress the fish. I plan to run the fluoro part 12 hours per day, and the cathode as needed. As for the hood; it's already got a matte white reflector surface inside but I intend to make this as reflective as possible, and in the process alter the side angles using styrofoam inserts, so the majority of the light hits the water surface at 90 degrees or as close to it as possible. I am using some 3D ray-tracing software to trace the rays from the tubes, so I should get somewhat close to optimal. I have discovered a cheap mylar reflector too that's better than aluminium foil: it's the right time of year for it too! There is a type of Christmas wrapping paper sold in the $2 shops around here that has a pattern on one side and a mirror mylar back side - I plan to line the inside of the hood with this material using a photographic roller to get it smooth. My main worry with this is that the hood's ventilation may be affected (heat shortens the life of and dims output of fluoro tubes). I have a couple of spare computer fans lying around so I am going to modify the hood to mount these if heat becomes a problem. All in all, I reckon I'll get a good looking tank, that grows plants (I'm going the DIY CO2 route later as well), is pleasing to view and cheap-ish to run. By my calculations the whole tank should cost about $50.00 per year in electricity to run, which is a small price to pay for the enjoyment it theoretically will bring me. Oz |
#4
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On Wed, 22 Dec 2004 12:37:33 +1100, Ozdude wrote:
As for the hood; it's already got a matte white reflector surface inside but I intend to make this as reflective as possible, and in the process alter the side angles using styrofoam inserts, so the majority of the light hits the water surface at 90 degrees or as close to it as possible. I am using some 3D ray-tracing software to trace the rays from the tubes, so I should get somewhat close to optimal. Love to see the design you come up with, maybe write a how to and share your experiences with us ![]() I seem to remember reading somewhere that you can only improve on a reflective surface (over a mat white) by a small percentage? I may be wrong? grop |
#5
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![]() "grop" wrote in message ... On Wed, 22 Dec 2004 12:37:33 +1100, Ozdude wrote: As for the hood; it's already got a matte white reflector surface inside but I intend to make this as reflective as possible, and in the process alter the side angles using styrofoam inserts, so the majority of the light hits the water surface at 90 degrees or as close to it as possible. I am using some 3D ray-tracing software to trace the rays from the tubes, so I should get somewhat close to optimal. Love to see the design you come up with, maybe write a how to and share your experiences with us ![]() I seem to remember reading somewhere that you can only improve on a reflective surface (over a mat white) by a small percentage? I may be wrong? No you are right. There is every possibility that matt white will be sufficient, but if I can get max % refelection, even if it's say, 3 or 4% over white then everybody's happy ![]() interesting commentary if I put a details web page together. Optimally it'd be a matter of just buying the fitting, changing the lamps and positioning it over the tank and pluging it in, but as I am doing nothing put projecting at this time it's one of those "run with the bulls..." type things ![]() One thing's for sure though - the outer surface is going to be retrofitted and painted because bent metal in basic grey isn't going to cut it from a room aesthetics point of view ![]() Have a good Christmas and a progressive New Year (at least) ![]() Oz |
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