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Hoppy Hoppy is offline

Planted Tank Guru

Visitor Messages

Showing Visitor Messages 161 to 170 of 178
  1. Hoppy
    01-03-2011 12:35 AM
    Hoppy
    Two T5NO at 20 inches should be medium light.
  2. b 30g
    01-02-2011 02:02 PM
    b 30g
    could you tell me what light would this be considered 30 gallon tank 20 inches deep with 2 18 watt t5no sitting right ontop
  3. CichlidsinNFLD
    12-28-2010 02:44 PM
    CichlidsinNFLD
    Hi Hoppy, I am new to the forum and just posted a discussion for my planted 75 gallon, I have been having some problems with growth and was wondering if you would be able to take a look and provide me with some feedback on lighting? I hear you are the king of lighting planted tanks so any advice you can give me would be great!

    http://www.plantedtank.net/forums/li...ggestions.html
  4. NanoDan
    03-13-2010 06:00 PM
    NanoDan
    Hoppy, can you tell me when and where the SAPS meetings are? Thanks!
  5. three105
    02-01-2010 01:07 AM
    three105
    hey man, take a look at my new post under fertilizer section... could use some help.

    Thanks, Three
  6. CL
    12-23-2009 03:57 AM
    CL
    happy four year joining date tomorrow (was browsing through members and noticed you joined tomorrow four years ago lol)
  7. CL
    09-10-2009 10:56 PM
    CL
    Congrats on 5K!
  8. Hoppy
    07-24-2009 06:03 AM
    Hoppy
    Bob,
    T5 means 5/8 inch diameter tube, T8 means 8/8 inch diameter tube, T12 means 12/8 diameter tube, etc. HO means high output. T5HO are 5/8 inch diameter tube fluorescent bulbs, which use a ballast that drives them at about 1.5 times the wattage as T5NO (normal output) bulbs. So, a 48 inch T5HO is a 54 watt bulb, but a 48 inch T5NO bulb is about 38 watts, as I recall. The HO bulbs are designed to be driven at the high wattage, and the ballasts for them are designed to baby them as they start up, so the higher power doesn't shorten their life.

    Power compacts, or what we usually refer to as PC bulbs, are the two parallel tube, but interconnected, usually 5/8 inch tube, fluorescents, that are operated at a lower wattage per foot of bulb than T5HO bulbs are. In the UK I think they refer to the spiral screw-in bulbs as power compacts but I'm not sure. PC bulbs, in our usage of the term, have 4 contacts on the plug-in end, either in a straight line, or arranged in a square pattern. But, as far as I know we use them with a single power wire to each pair of contacts, so I don't know why they have three contacts.

    That is most of what I know about them.

    Vaughn
  9. BobinCA
    07-23-2009 11:57 PM
    BobinCA
    Hoppy,

    What is a T5HO bulb? Is it the same as what I have...power compacts?

    and thank you for the invite to the Sac. Club.

    Bob
  10. Hoppy
    07-23-2009 10:57 PM
    Hoppy
    BobinCA,
    Osmocote is used as a very thin layer, a dusting, under all of the substrate. I should then slowly release the fertilizers so the substrate has a continuing supply of them, until it finally runs out. Laterite is a form of clay, which has high CEC, and has lots of iron in it, which may or may not be very available to the plant roots. Mulm is a good source of good bacteria, which will more quickly establish the bacteria colonies in the substrate, and those colonies, as I understand it, convert the iron in clays to a more usable form for the plants.

    A single T5HO bulb, with the typical single bulb, highly polished aluminum reflector, provides about 40 micromols of PAR at 24 inches from the bulb. Since your tank is 24 inches front to back, three bulbs spaced evenly across the top should give you about 60-70 micromols at the substrate, dropping a bit at the front and back glass. This would be about medium light intensity. Or, with 2 bulb fixtures, two of them - 4 bulbs total - with the two fixtures about 8 inches apart should give you at least 100 micromols of PAR at the substrate level, which would be high light intensity.

    The best source of fast growing plants, stem plants, is a local aquarium club, Sacrament Aquatic Plant Society, for example. I think you joined? If not, visit http://groups.yahoo.com/group/sacaquaticplant/ and join us, then send out a group email asking for plants. That usually gets you free cuttings, but only from the stem plants currently being grown in the group. The next best source is the Swap n Shop forum here.

    Vaughn Hopkins

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  • About Hoppy
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    Sacramento, CA
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    Hoppy

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  • Join Date: 12-24-2005
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