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Showing Visitor Messages 141 to 150 of 190
  1. Doc7
    06-29-2011 08:16 PM - permalink
    That seems like a pretty low PAR, even for low light tank. I do know you recommend low light. I am ready and willing - in fact eager - to use the dual stage CO2 system I just finished and wonder if there is a way to take more advantage but still in that low/medium sweet spot.
  2. Hoppy
    06-29-2011 04:20 PM - permalink
    A 40 breeder tank is about 16 inches high. If you have 3 inches of substrate, and the bulbs are about an inch above the top of the tank, they will be about 14 inches from the substrate. A Coralife 2 bulb T5NO light should give you about 40 mms of PAR at that distance. If you use two of them spread about 8 inches or so apart, you should get pretty uniform 40 mms PAR over the whole substrate. Unfortunately it is hard to find any Coralife T5NO lights now. You could do without CO2 with that light level, but Excel would help the plants a lot.
  3. Doc7
    06-29-2011 03:22 PM - permalink
    The feline situation has convinced me to re-look at the whole picture here and after reviewing many of your comments in the past again, now I am back to thinking about a T5NO, 2 bulb wide-spread setup in a canopy. then I don't need to mess with anything between the lights and water and there will be defense against the cat going in which is win win.

    I have a 2 bulb T5NO already on my 20 gallon High (16 inch height, 12 inches wide) and it certainly doesn't seem too bright to me although I have no PAR meter. It is a coralife which has mixed reflector reviews. I am struggling to convince myself that the same number of bulbs, but spread out 8 inches from one another in a bigger fixture, will provide good lighting for growth. Does that bring me to the equivalent of 1 T5NO for most substrate areas?
  4. Hoppy
    06-28-2011 04:31 PM - permalink
    I have never tested the use of "egg crate" versus light intensity. Intuitively I think it will reduce the PAR about 30-50%, even directly under the light, and more further away from the center of the light, but that is largely a guess. (A spot directly under the light gets light from a pretty long length of the bulbs, but the "egg crate" stops the light from much of that length, which should reduce the PAR directly under the bulb.) I doubt that there is much, if any difference between 10" and 11" wide fixtures.
  5. Doc7
    06-28-2011 02:42 PM - permalink
    [FONT=Arial]I can get a 2 x T5HO custom Catalina fixture in either 10” or 11” wide (which must be used for their 3/4/6 bulb units) for a comparable price to the Hagen GLO etc fixtures and less than 50% of the price of getting a 4 bulb fixture (TEK etc) and not using 2 of the bulbs. This seems like a great way to increase the spread over an 18” wide 40-breeder tank.

    A recent change; I will be using egg crate over the tank to prevent feline intrusion. I understand that egg crate re-directs stray light with an increase in PAR directly beneath the bulbs yet a decrease in PAR as horizontal distance from the bulb grows. Do you think 2 bulbs in either 10” or 11” fixture, will be able to be raised to an “optimal” height such that I had the relatively even low-to-moderate light you recommend w/ CO2 dosing/EI? See any reason to use 10” vs 11”?

    Thanks much for all the help you provide.
  6. Hoppy
    06-17-2011 02:39 AM - permalink
    I have various photos of tanks I have had, and setups I have had, but my 3 tanks now are all in a state of need for a lot of loving care. I get preoccupied with my projects and neglect them. And, in a few months I hope to be moving, where I may not be able to have any tanks, which dampens my current enthusiasm.
  7. amberskye
    06-17-2011 01:41 AM - permalink
    ..passing through ...
  8. amberskye
    06-03-2011 12:37 AM - permalink
    have you any photos of your planted tanks?
  9. Hoppy
    05-30-2011 10:03 PM - permalink
    Near the point where the fish are unhappy, not at that point. The lower the light level, the more leeway you have for having less than maximum CO2.
  10. amberskye
    05-30-2011 09:29 PM - permalink
    hope u dont mind me jumping in...but carpeting plants need CO2 to the point where fish are unhappy? oh my. No I cant do that, so goodbye carpet.

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  • About Hoppy
    Sacramento, CA
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03:26 PM - bassbuster23 mentioned Hoppy in post Cleaning your tank
Hoppy.....will the credit ...
05:27 AM - Nick00Merlin mentioned Hoppy in post 125H Gallon First Time Live Plant Project (Lots Of Pictures)
...resting experience. Hoppy has a lot of good in...
12:32 PM - bassbuster23 mentioned Hoppy in post Will this work?
...ssing towards also, Hoppy. Do go ahead - it...
09:14 PM - thedood mentioned Hoppy in post Types of Metricide question. Thanks Hoppy and bassbuster23
03:04 AM - Audionut mentioned Hoppy in post Wrapping my head around KH and co2. Led light questions! Look!
... Minor correction Hoppy. That would be Bica...
01:39 AM - Audionut mentioned Hoppy in post CO2, pH, and dKH question observation from Hoppy. The last paragraph...
02:32 AM - burr740 mentioned Hoppy in post Lighting an Aquarium with PAR instead of Watts
...hat one was made by Hoppy (thanks again man, i...


09:44 PM - Hoppy quoted donny in post The Dangers of CFL lights
There's actually a large b...
10:47 AM - Audionut quoted Hoppy in post baking soda KH question
It does not buffer against...
08:10 PM - Hoppy quoted AWolf in post How To Test CO2
The responses so far have ...
10:43 PM - Hoppy quoted i4x4nMore in post PAR Data-Spiral Power Saver Bulbs, lighting question
jraculya,If you can track down...
10:37 PM - Hoppy quoted Mytkobun in post Sacramento Area LFS
Stopped by the other day at J...
02:59 PM - Maryland Guppy quoted Hoppy in post How To Test CO2
I think it is best to just...
05:31 AM - Hoppy quoted jraculya in post PAR Data-Spiral Power Saver Bulbs, lighting question
Thank you for the quick respo...
05:15 AM - Hoppy quoted Sergeant Dude in post Water changes. How is filling your tank with a hose possible without death to Fish?
Chloramine isn't nearly as toxic a...
12:57 AM - Argus quoted Hoppy in post Top off water
Has anyone ever run into p...
12:30 AM - quiquik quoted Hoppy in post Top off water
...ersely affected. No Hoppy I have not had any p...

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