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Hoppy Hoppy is offline

Planted Tank Guru

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Showing Visitor Messages 171 to 180 of 189
  1. night9eyes
    01-13-2011 07:41 PM
    My husband did have a question with the Coralife 2 bulb T5NO light, he was wondering if it's enough wattage for a 55 gallon tank. Here is the link you sent. . .thanks! Question was regarding an Amazon Biotope aquarium set-up.
  2. Hoppy
    01-02-2011 11:35 PM
    Two T5NO at 20 inches should be medium light.
  3. b 30g
    01-02-2011 01:02 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
  4. CichlidsinNFLD
    12-28-2010 01:44 PM
    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!
  5. NanoDan
    03-13-2010 05:00 PM
    Hoppy, can you tell me when and where the SAPS meetings are? Thanks!
  6. three105
    02-01-2010 12:07 AM
    hey man, take a look at my new post under fertilizer section... could use some help.

    Thanks, Three
  7. CL
    12-23-2009 02:57 AM
    happy four year joining date tomorrow (was browsing through members and noticed you joined tomorrow four years ago lol)
  8. CL
    09-10-2009 09:56 PM
    Congrats on 5K!
  9. Hoppy
    07-24-2009 05:03 AM
    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.

  10. BobinCA
    07-23-2009 10:57 PM

    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.


About Me

  • About Hoppy
    Sacramento, CA
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  • Last Activity: Yesterday 03:15 AM
  • Join Date: 12-23-2005
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