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F15hguy

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Posts posted by F15hguy

  1. I saw a Triops kit (yes the one with the cheesy volcano and googly eyed kids on the box) about 2 months back in a box lot at Tauranga Auctions, I missed out on it cause some one was on a kids toy mission and the box lot went for $100. But they are definately in the country, and if someone can find them they are supposedly easy to breed

  2. I've always hated it when people try to tell me that fish will only grow to the size of the aquarium, I always come back with "If I sold you a kitten and gave you a carry cage and said if you keep it only in here it will grow smaller"

    some people don't like me

  3. Have just been speaking to a local aquatic gardener who was talking about using liquid CO2 to combat outbreaks of BBA, makes sense as BBA can sometimes be caused by excess lighting with insufficient CO2. has anyone else tried this before, and with what results

  4. I would look at building the rockwork in the african tank a bit higher to provide more hidey holes, and to hide the equipment, I prefer a black or dark coloured back ground to make the yellows and oranges and whites show up better.

    love the apisto tank

  5. an interesting quote ....

    Hrmm...

    If what Amano researched is indeed true, we all can just use ordinary shop bulbs.

    In shop lighting, the light's selling point is the brightness. Manufacturers purposely exploit this to the human's eye spectrum sensitivity, and create a huge spike on the green region. The reason is because the green spectrum is the most sensitive region to the human eye. Thus inserting a lot of green, would make bulbs appear to be brighter.

  6. Which book?

    Aquarium Plant Paradise - he uses sodium tubes ( yellow )

    Nature Aquarium World Books 2 & 3, he just quotes wattage and photoperiods.

    I stand corrected.

    But as I mentioned above, reds are absorbed by water and blue by dissolved organic compounds. As I understand it Amano feels you'll get more natural growth patterns with green lighting which is why they sell green lighting.

    I don't believe that its for more natural growth,

    NA Lamp with an additional green spectrum.

    The New NA Lamp has the highest peak at 540

    nanometer and another peak at 520 nanometer

    (see the arrow in the illustration above). This

    new sub-peak is adopted to bring out the most

    natural colours of the aquatic plants.

    from the ADA australia website, I read this as it provides the best Veiwing of the plants, i.e. it provides the green light to make the plants prettier to the human eye.

    also most plants do not come from a poetic forest floor area, most come from lakes and marsh areas in water less than 2m deep, so the effect of water absorbing the light is very minimal. if a plant come from these areas they are normally sciophytic and grow in areas of the tank that should be shaded from above by other plants, naturally filtering and reflecting the light to a more green wavelength anyway.

    The only thing I can see is that they purposefully chose to reduce the light intensity so that folks would get slower growth, but less issues with a wider range of public dosing routines when using their brand of lights.

    So more folks would have less algae and dosing issues with their lights, while others would have more hassle using other brands.

    from the Barr report

    or you could just look at what light chlorophyl absorbs, as proven many times over by science....

    chlorophylll.jpg

    indexvw.jpg

  7. Well, I've had more than few run ins over this topic about the middle bans being used by plants and that the Red/blue spikes are appealing to some fol's eyes, but they do not significantly make the light bulb more efficient and have a higher PUR etc.

    They use other pigments to grab this light as it filters through the tissue and the epidermis.

    Amano/ ADA suggested filtering from the forest around the aquatic plants, but few, hardly any aquatic plants lie in such dark locations in forest, they live mostly in open marshes...........

    They could have stated this citation, or said what these authors said, rather than that bull manure.

    It still shows the light works well in those color ranges/nm etc.

    Just their reasons for it working are simply put, wrong.

    Now some plants, like Egeria and myriophyllums etc are only 2-3 cells thick on their leaves, so the filtering of the light is not great, but the filtering of red light is in water...........and Green algae are around, so that also absorbs some like the forets/trees etc like ADa claimed, again, missing the other things that are present in nature.

    I really kind of hate ADA's "nature" poem crap, it's really not very nature oriented Science wise. If you hold such respect for nature, then you learn why, how it works, what things cause it to be the way that it is, not some poem about what you'd like it to be.

    Big difference.

    from the barr report that you linked us to.

    The blue light is better for marine tanks as blue light penetrates deeper and provides a better quality light for the photosynthetic algae in corals. (and red light disapears a lot quicker in marine water.)

    also I believe the only real reason they sell green lighting is to be used in conjunction with red lighting to provide the 'glowing' look people like in their tanks (try it out and switch each colour on and off individually) hence my preference for multipletubes with different wavelengths (p.s. look at amano's tank specs in his nature aquarium books, he doesn't use green lighting)

    Yes, blue and reds will max out photosynthesis if the plants can get it.

    then why not give it to them???? the original question was what type of light provides the best growth.

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