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Hoppy Hoppy is online now

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Showing Visitor Messages 41 to 50 of 193
  1. Hoppy
    02-28-2014 04:18 PM - permalink
    I used the data from i4x4nMore, which I plotted on log-log graph paper to make extrapolating easier. I suggest starting with the light at the top of the tank, but being ready to raise it a couple of inches if necessary. I stopped making PAR meters, from boredom. I'm still looking into the possibilities of using the process described in to make more of them, with less boredom.
  2. hitmanx
    02-28-2014 01:12 PM - permalink
    Sorry, I don't mean to to be a pest, but I'm trying figure out how high to hang the light to achieve upper low light par. At what height do you think it would be 40par? Which one of your charts did you use to get get to that answer? Can I assume the lower numbers chart you made and the one i4x4nMore or more realistic? I just need a ball park so I have somewhere to start from and tweak... are still selling par meters?
  3. Hoppy
    02-28-2014 04:51 AM - permalink
    I think you will get around 40-45 PAR, which is low medium light.
  4. hitmanx
    02-28-2014 02:39 AM - permalink
    thanks for the reply. in my case i want low light, and my tank dimensions are 13x13in surface area, so i currently have a 23w daylight in a 8.5in dome and the bulb does NOT stick out... in the mean time, based on your previous experiments, which chart should i be using?

    thanks again
  5. Hoppy
    02-27-2014 01:48 AM - permalink
    When there was big disagreement about how much PAR one of those bulbs would give, there were 3-4 of us making measurements, and making various errors in doing so. Plus, we found that a bigger CFL bulb that would stick out of the dome reflector would give significantly less PAR, and we were mostly using 8.5 inch domes, not 10 inch ones. With the 10 inch dome the bulb doesn't stick out, as I recall, but with the 8.5 inch one it does. I haven't revisited that subject since then, but I have planned to do so sometime.
  6. hitmanx
    02-27-2014 12:30 AM - permalink
    Referencing this post:

    Maybe you can shed some light (pun intended) on my problem with fluorescent bulbs and dome reflectors.

    Data from several sources seem to contradict each other, maybe I'm just not reading it right.

  7. Hoppy
    02-17-2014 04:39 PM - permalink
    You would be providing a very limited lighting spectrum if you use just the actinic bulbs. Plants do use that light, but they need more than that, as far as spectrum is concerned. And, most people find a planted tank with just actinic lights looks very weird, spooky, and lacking in colors.
  8. Designmejen
    02-17-2014 01:09 AM - permalink
    Thanks for the info. Do you think it'll be ok if I just run the 2-420/460 actinic lights?
  9. Hoppy
    02-16-2014 04:21 PM - permalink
    Any 4 bulb T5HO light is likely to be too much light for a 20 gallon tank. But, the Aquaticlife lights also have good reflectors, so with all 4 bulbs on you should have about 150 PAR at the substrate. There is no way to get enough CO2 in the water to fill the plant's needs to grow at the rate that much light demands. That is certain to lead to big algae problems. Even with 2 bulbs you will have to be very careful to get enough CO2, enough oxygen in the water, and good enough maintenance to be able to avoid algae problems.
  10. Designmejen
    02-16-2014 04:45 AM - permalink
    Hi Hoppy. I have a Aquatic Life t5 HO 4 lamp lighting system on a 20gal high tank, and I wanted to know if you have any suggestions on timing my light system.

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  • About Hoppy
    Sacramento, CA
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04:25 AM - PortalMasteryRy mentioned Hoppy in post Nutritional requirements of aquarium plants
...o lower levels. Hoppy: You live so close t...
03:32 AM - PortalMasteryRy mentioned Hoppy in post Nutritional requirements of aquarium plants
Hoppy: I've actually reset...
04:56 AM - Marcel G mentioned Hoppy in post Dosing system: Is it really needed?
...e of hobbyists. Hoppy, my goal with this e...
08:59 AM - Audionut mentioned Hoppy in post High nutrients promote algae growth and are toxic to aquatic life
...ferts is relevant. Hoppy was merely pointing ...
12:56 AM - Audionut mentioned Hoppy in post High nutrients promote algae growth and are toxic to aquatic life
Hoppy, yes that is what EI...
11:19 PM - dukydaf mentioned Hoppy in post High nutrients promote algae growth and are toxic to aquatic life
...very hour. What Hoppy says makes the most ...
02:46 AM - bassbuster23 mentioned Hoppy in post Excel & CO2
... both benefits that Hoppy stated.
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...


04:19 AM - The Big Buddha quoted Hoppy in post Considering starting Excel my vals. Hey Hoppy, Is that 10ml of...
03:11 AM - hachi quoted Hoppy in post Considering starting Excel
You are probably going to ...
08:21 PM - Ukelay1 quoted Hoppy in post Potassium nitrate with a stocked tank
If you have more than 20-4...
07:35 PM - hachi quoted Hoppy in post Considering starting Excel
Excel is not a standard fe...
06:02 PM - Hoppy quoted kuriuskitten in post Considering starting Excel
I've used both Excel and Flourish...
04:24 AM - Hoppy quoted bt7896 in post Cfl lighting
Standard fluorescent lighti...
08:06 PM - Hoppy quoted Nordic in post Bucketless water change system.. first attempt
I never understood why you ...
07:45 PM - Hoppy quoted FLGirl in post Am I on the right track? Suggestions for 55 gallon setup?
Ah, I see... the last time ...
02:40 AM - m00se quoted Hoppy in post Kill your stubborn BBA
... hypothesis either, Hoppy. But I'll tell you u...
05:51 AM - FLGirl quoted Hoppy in post Am I on the right track? Suggestions for 55 gallon setup?
A 4 foot long Finnex Plant...
05:21 AM - Melika quoted Hoppy in post Low or no KH and low PH without a "crash"??
That thread on APC is more...
01:19 AM - D@nno quoted Hoppy in post Plants are really struggling, despite fertilizer/excel/appropriate lighting.
See http://www.plantedtank...
12:20 AM - Navyblue quoted Hoppy in post The low tech concept and nutrient balance
Unless the anubias are tie...
11:29 PM - Hoppy quoted s_s in post The low tech concept and nutrient balance
Given that anubias isn't...
11:24 PM - Hoppy quoted bassbuster23 in post Excel & CO2
Adding it to the tank is ineffect...
10:50 PM - Anansi quoted Hoppy in post Is this a hazard and if not, is it enough? WARNING lots of pictures
I see no problems. We tend...
08:52 PM - ernest quoted Hoppy in post BAKING mineralized soil?
The mineralizing process i...
06:11 PM - Hoppy quoted randym in post The low tech concept and nutrient balance
Your nitrates are high enou...
04:21 PM - ichy quoted Hoppy in post 5730 SMD help.
...m not in that group.Hoppy, I'm going to parti...
07:17 AM - Padres1234 quoted Hoppy in post Gonna try a DIY light, advice?
Since you can double the a...

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