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15-06-2003, 09:44 AM | #51 | |
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Re: Re: Re: Re: how to get gw the easy way
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In nitrogen cycle, bb consumes ammonia and convert them to nitrite and nitrate. In green water, unicellular algae consumes ammonia and carbon dioxide during photosynthesis (which has no harmful by-products.) As you can see, both beneficial bacterial and unicellular algae consume ammonia. Therefore, if you want green water, you must not cultivate bb since bb will fight with your uni algae over ammonia. The reverse is also true. That's why pple often say "your filter must not be effective" which sounds so oxy moron. Why on earth do you want something ineffective?? What they really meant to say is you should have mechanical filtration (use wools to trap large debris) and don't use any bio-media such as CR and sinster glass etc for bio-filtration, or else I suspect bb will win since it can thrive throughout the day and night while algae is domant at night. In this sense, an OH filter with wools works best while canister filter or sponge filter are the wrong type of technology to apply. |
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15-06-2003, 10:08 AM | #52 | |
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Re: Re: Re: Re: how to get gw the easy way
Metal halide is just another type of lighting system, in addition to florescence, halogen, xenon etc.
It's commonly used in commercial areas such as National Stadium's lighting towers, your school's hall, jewery and bridal shops' showcase. The main advantage is it's energy efficient for the amount of light it generates. The main disadvantage is it generate a lot of heat, and I mean ALOT! I attached a pic of a typical metal halide bulb, and those kind of MH lamp often used in shopping malls. For safety reason, I would suggest you use MH sepcifically designed for aqaurium use. Arcadia makes good ones.... for coral reef aqaurium tanks. Next time you go QianHu, see them in their marine tank, and on display at the sales area lor. [Cool Arcadia MH lamp with build-in timer and cooling fans too.] Quote:
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15-06-2003, 10:10 AM | #53 |
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Whoops... forgot to attach the pics of common MH lamps used in shopping malls ...
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15-06-2003, 10:11 AM | #54 |
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Another one... recessed downlight type:
Look them up in places like Lee Hwa jewery shop's ceiling. Last edited by happybuddha; 15-06-2003 at 10:15 AM. |
15-06-2003, 10:13 AM | #55 |
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A common MH bulb... about $20-$25 for a 100 watts Osram at Balasteir Road lighting shop.
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15-06-2003, 01:44 PM | #57 | |
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Re: Re: Re: Re: how to get gw the easy way
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15-06-2003, 01:45 PM | #58 | |
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Re: Re: Re: Re: Re: Re: green water again
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15-06-2003, 01:48 PM | #59 | |
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Re: Re: Re: Re: Re: how to get gw the easy way
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16-06-2003, 01:12 PM | #60 | |
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Re: Re: Re: Re: Re: how to get gw the easy way
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