PAR vs Distance, T5, T12, PC - New Chart - Page 51 - The Planted Tank Forum

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post #751 of 776 (permalink) Old 09-15-2012, 11:41 PM
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Rocket Science?

What is all this high-falluting PAR stuff ? All I want is to be able to put enough light into my 30 gallon 18" high aquarium so I can grow plants without breaking the bank! Jeesh, my dad did it successfully in London in the 70's without CFL's T5/8 etc!!!! SURELY it shouldn't take ALL this nonsense just to grow plants in the above aquarium in a hard water area with a Fluval 88g CO2 unit attached!

I'm a computer tech and I get fed up with other "techs" confusing my clients with unecessary "geekspeak", and sorry, but that's exactly what I am reading above!
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post #752 of 776 (permalink) Old 09-16-2012, 01:47 AM
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"We" had computers in the 70s as well, but those have changed just a bit over time. One major change is we have computer techs, instead of graduate electrical engineers.

Your dad wasn't growing some of the fantastic range of plants that people are into forty years later.
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post #753 of 776 (permalink) Old 09-16-2012, 02:31 AM
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Originally Posted by britintexas View Post
What is all this high-falluting PAR stuff ? All I want is to be able to put enough light into my 30 gallon 18" high aquarium so I can grow plants without breaking the bank! Jeesh, my dad did it successfully in London in the 70's without CFL's T5/8 etc!!!! SURELY it shouldn't take ALL this nonsense just to grow plants in the above aquarium in a hard water area with a Fluval 88g CO2 unit attached!

I'm a computer tech and I get fed up with other "techs" confusing my clients with unecessary "geekspeak", and sorry, but that's exactly what I am reading above!
We used to light our homes with gaslight. Times change. Technology changes. We gain knowledge.

Did you know co2 was used as early as the early 60S ?
Look see here. http://web.archive.org/web/200605042...m/co2_text.htm
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post #754 of 776 (permalink) Old 09-16-2012, 05:37 AM
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Quote:
Originally Posted by britintexas View Post
What is all this high-falluting PAR stuff ? All I want is to be able to put enough light into my 30 gallon 18" high aquarium so I can grow plants without breaking the bank! Jeesh, my dad did it successfully in London in the 70's without CFL's T5/8 etc!!!! SURELY it shouldn't take ALL this nonsense just to grow plants in the above aquarium in a hard water area with a Fluval 88g CO2 unit attached!

I'm a computer tech and I get fed up with other "techs" confusing my clients with unecessary "geekspeak", and sorry, but that's exactly what I am reading above!
If that's the case, any old light that looks bright enough should suffice.
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post #755 of 776 (permalink) Old 09-16-2012, 11:26 AM
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what kind of lighting did your dad use?
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post #756 of 776 (permalink) Old 09-16-2012, 04:20 PM Thread Starter
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Your dad very likely had a low light tank, which allowed him a lot of leeway on lighting with the very limited choices avaialable then. The reason for getting high-falluting is that there are so many very, very bright lights available for aquariums now, and if you just use the brightest one you can get you end up becoming an algae farmer or an algae fighter, not a planted tank enthusiast. That is what ruined many people's planted tank experience.

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post #757 of 776 (permalink) Old 09-18-2012, 06:24 PM
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hey Hoppy i'm new to this hobby. i'm planning to get a Catalina T5HO 24 in with 2x24 watts or Aquatic Life T5HO 24 in 4x24 watts light. which light would you recommend for a medium high/high tech tank? i am using the ADA 60p tank. Should i hang it or use the legs and if hanging how far should i do it? Or maybe there is a T5HO light you can recommend me.
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post #758 of 776 (permalink) Old 09-18-2012, 07:25 PM
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Not Hoppy but....
I have a 40 gal breeder & had catalina make a single 36 " fixture

Best if about a foot above the water. I have it on top of the tank because I can't stand being in a football stadium right in my own living room...lol
So when the plants reach mid way on the tank, they race to the top. I do a simple trim every 2 weeks. When I say simple I mean as compared to a mid-high light tank
HTH

As Always Thank You Hoppy for All you have done for the "aquatic lighting" community

Regards,
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post #759 of 776 (permalink) Old 09-22-2012, 05:23 PM
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HI

while doing some maintenance i realized one bank of lightswas out. I check bulbs and they are good so I figure I need A new ballast. Hmmmmmmm I said to myself , by the time I order the ballast & install it could easily be 2 weeks. I have two identical fixtures& these bulbs are expensive ( 15 - 20 each)
So I am thinking about the Finnex ray 48 inch for one tank ( one is a 75 and the other a 55 gal) and keeping one existing fixture. <br />
Anyone using the Finnex Ray for a tank that measures either 21 inches or 15 inches to the substrate. On there site there is a chart that indicates it puts out 7k . I am looking for advice ... Can U help?
Thanks for your help


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post #760 of 776 (permalink) Old 10-13-2012, 10:09 PM
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Would the Zoo Med Aquasun be classified as crappy reflectors or fair? Also what would be the optimum height for medium-high light in a standard 15g?

What are the best bulb combos? I have a 6500k and a 5500k, but I have heard of other mixes and I feel that mine isn't the best mix, though it may be.
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post #761 of 776 (permalink) Old 11-21-2012, 12:07 AM
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Originally Posted by KFryman View Post
Would the Zoo Med Aquasun be classified as crappy reflectors or fair? Also what would be the optimum height for medium-high light in a standard 15g?

What are the best bulb combos? I have a 6500k and a 5500k, but I have heard of other mixes and I feel that mine isn't the best mix, though it may be.
The best combo provides a full spectrum, high intensity spectra in reddish and bluish wavelengths. I have good success with CFL 6500K bulbs on my 15g. Optimum height would depend on plant selection and setup. I use a Zoomed with a FloraSun and Ocean Sun on my 10g that is ~12in above water
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post #762 of 776 (permalink) Old 11-21-2012, 01:25 AM
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need an answer fast... do you think 1 t5 40 watts is more then enough to grow dwarf baby tears in a 40 gallon breeder tank with decor and rocks etc, it comes out to about 30 gallons of water only... let me know i am looking to redo my lights right now... 2 bulb or 1 for this tank

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post #763 of 776 (permalink) Old 07-05-2013, 05:26 PM
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I can't help but to post... this was one of the msot useful things I have ever seen posted on any aquarium forumn, thanks so much for doing the work! I way over lit my last tank, and surprise surprise, algae! I almost got a 6 bulb T5HO fixture for my 75 gal tank. Overkill!
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post #764 of 776 (permalink) Old 07-06-2013, 01:16 AM Thread Starter
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This thread is obsolete! See Lighting an Aquarium with PAR instead of Watts for more up to date information, which will before long be obsolete too.

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post #765 of 776 (permalink) Old 08-12-2013, 05:12 AM
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ummm..... soo i have like 600 par? what??? thats A LOTTTTTT of light.... lol 2 t5ho coralife fixture, 10 inches away at most. 6 at the closest.... hahaha 600 par
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