The Planted Tank Forum - View Profile: Hoppy

Hoppy Hoppy is online now

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  Visitor Messages

Showing Visitor Messages 121 to 130 of 198
  1. ThatGuyWithTheFish
    05-13-2012 08:56 PM - permalink
    ThatGuyWithTheFish
    Hey, do you know Ned of Uncle Ned's in MA? Your avatar really reminds me of the one from his website homepage.
  2. Hoppy
    05-09-2012 04:52 AM - permalink
    Hoppy
    treelimbjim, that other post was done back when I was still trying to make sense out of designing a LED light. I wouldn't recommend following that method now. The calculator is based on more data and more varied data. If you have taken some PAR measurements with other configurations I would appreciate receiving the data so I can see how it fits in with the other data I have.

    This is still an evolving design process, but I haven't seen a better process.
  3. treelimbjim
    05-09-2012 03:23 AM - permalink
    treelimbjim
    Thank you for your contributions.

    Trying to answer "How many (and type) LEDs to use my 70 gal?" or simply, "Is 24 XPG enough? 36?"

    I've been estimating with spreadsheet V.3.

    Tank: 48wx18dx20h, 3" substrate

    Frame: 1.5" aluminum extrusions, 3 x 48" rails on 5.25" centers.

    Mod/add:
    Table for PAR est. for L,M,H light (see below)
    LED height: Tank_height + LED_Height_above_water - Substrate_depth
    Conditional format: 1) PAR background is blue, green, orange for L,M,H light. 2) current background is red when >rating.
    Table for Spread with LED_Height and Cone_Angle

    I'm not clear about how the "rows" work. I'm trying the geometric mean of LED_spacing and my LED_row_spacing.
    Trying to validate the calculations, I ran across 84212-designing-building-led-fixture-22.html#post1102937
    ... and the spreadsheet isn't coming close to real world observations.

    Where to go from here?
  4. Hoppy
    05-08-2012 04:07 AM - permalink
    Hoppy
    Mark,
    The number and spacing of LEDs for any size tank can be calculated with reasonable accuracy using a Excel Spreadsheet "calculator" shown here: http://www.plantedtank.net/forums/di...ml#post1803323 I doubt that you will want to use Cree XP-G LEDs for that small a tank. Perhaps XR-E would be a better choice.
  5. MPH1
    05-08-2012 03:31 AM - permalink
    MPH1
    Hello Hoppy,

    I understand you are the aquarium lighting mentor. I was sent over here from Nano Reef by Evilc66. I am looking for some help with the lighting for my Aquarium.


    I am new to the aquarium/lighting arena. I have a Fluval 12 gallon tank with fresh water. I am wanting to grow some high light plants and carpet plants.

    I am considering a DIY modification to the lighting. I am looking into getting the CREE XP-G LED's. What do you think is the appropriate amount of cool white led's and the total amount of watts/lumens for the 12 gallon?

    Your input is appreciated!

    Cheers.

    Mark
  6. Hoppy
    03-10-2012 09:22 PM - permalink
    Hoppy
    With high light it is easy to run short of phosphates, and when you do, GSA starts growing vigorously. The solution is to dose more phosphates - I used to routinely double the EI dosage.
  7. ryc120
    03-09-2012 02:10 PM - permalink
    ryc120
    Surprisingly everything has been fine. I am running pressurized CO2 in the 29g now, and the plants are growing crazy. The issue is I am starting to see some GSA. I have had these lights on the tank for two months now. I'll try putting a layer of window screen on and see if that helps the algae issue. The lights are on right now for 8.5 hrs a day.
  8. Hoppy
    03-09-2012 03:45 AM - permalink
    Hoppy
    Two T5HO bulbs close together, with a good reflector, should give you high light at the substrate (24 inches away, assuming 3 inches of substrate.) That is too much light for what you are trying to do. A layer of figerglass window screen would reduce that to medium light, which may still be a bit more light than you need. Two layers reduce it to low light, just about right. I'm assuming the lights are both T5HO, and that they overlap in the middle, by two feet. That two feet of overlap is even higher light.

    I suggest you try for only low light, not use CO2, and if you are concerned about keeping enough oxygen in the water, direct filter returns up towards the water surface to create surface rippling across the whole length of the tank.
  9. ryc120
    03-08-2012 04:11 PM - permalink
    ryc120
    Would a solution be to put a layer of window screen under the lights?
  10. Ann7667
    03-08-2012 03:25 PM - permalink
    Ann7667
    Hi Hoppy ,
    This is Ann7667 and I need your advice on lighting.

    Tank: 72"x23"x18" (23" high)

    Substrate: pool sand

    Fish: 7 Rio Tapajo Red Noses (geophagus) (2 are 4" and 5 are 7"), 6 4" clown loaches, 5 Cory dora juliis, 1 5" Ancistrus, 1 Juru Pari 7"

    Plants: low light 4 feet along the back half.

    Lights: 2 4-foot lights one has two Coralife T5 HO 54 that sits 4" over the glass; one With 2 Sylvania HG 28 & sits on the glass.

    1. lights sitting on the glass cause BBA so i will hang them instead. How high? Will my fish jump out?
    2. How much lighting do I need?
    3. With more light, do I need CO2?
    4. It is so important to me that my fishies are comfortable and have enough oxygen in that tank. What is the balance of light needed to grow low to medium light plants and Co2 needed to prevent BBA growth and leaving enough oxygen in my tank for my fishies to be comfortable.

    Thank you for your help!

  About Me

  • About Hoppy
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    Hoppy

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  Mentions

02-27-2016
10:48 PM - thedood mentioned Hoppy in post CO2 from air... hear me out.
Hoppy, What is the theory ...
02-24-2016
10:03 PM - thedood mentioned Hoppy in post What to Do With Pretzel Jugs?
...k for that purpose, Hoppy made some good point...
02-20-2016
07:43 PM - heel4you mentioned Hoppy in post Fertilizing a 65 Gal low-medium light tank
Hoppy Let me know what yo...
02-17-2016
08:55 AM - dukydaf mentioned Hoppy in post High nutrients promote algae growth and are toxic to aquatic life
... I agree with you Hoppy. Just to add that of...
02-09-2016
03:25 AM - PortalMasteryRy mentioned Hoppy in post
02:32 AM - PortalMasteryRy mentioned Hoppy in post
02-07-2016
03:56 AM - 58417 mentioned Hoppy in post
02-04-2016
07:59 AM - Audionut mentioned Hoppy in post High nutrients promote algae growth and are toxic to aquatic life
...ferts is relevant. Hoppy was merely pointing ...
02-03-2016
11:56 PM - Audionut mentioned Hoppy in post High nutrients promote algae growth and are toxic to aquatic life
Hoppy, yes that is what EI...
10:19 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 ...
01-15-2016
01:46 AM - bassbuster23 mentioned Hoppy in post Excel & CO2
... both benefits that Hoppy stated.
11-30-2015
02:26 PM - bassbuster23 mentioned Hoppy in post Cleaning your tank
Hoppy.....will the credit ...
11-19-2015
04:27 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...
11-16-2015
11:32 AM - bassbuster23 mentioned Hoppy in post Will this work?
...ssing towards also, Hoppy. Do go ahead - it...
11-12-2015
08:14 PM - thedood mentioned Hoppy in post Types of Metricide
...my question. Thanks Hoppy and bassbuster23
10-30-2015
02:04 AM - Audionut mentioned Hoppy in post Wrapping my head around KH and co2. Led light questions! Look!
... Minor correction Hoppy. That would be Bica...
10-16-2015
12:39 AM - Audionut mentioned Hoppy in post CO2, pH, and dKH question
...is observation from Hoppy. The last paragraph...
10-03-2015
01:32 AM - burr740 mentioned Hoppy in post Lighting an Aquarium with PAR instead of Watts
...hat one was made by Hoppy (thanks again man, i...

  Quotes

03-01-2016
03:52 PM - Edward quoted Hoppy in post Water changes- how often?
Is this something you hav...
03:31 PM - Hoppy quoted Unlimited16 in post Total Noob to CO2, need help!
As for the gauge, it hovers arou...
02-29-2016
08:32 PM - SpaceLord quoted Hoppy in post Fish keep swimming in circles, something is wrong with him. Any ideas?
Do you use Prime or a simi...
08:08 PM - isonychia quoted Hoppy in post Can low light for algae control affect plant health and promote algae
It doesn't look like the c...
07:59 PM - Hoppy quoted isonychia in post Can low light for algae control affect plant health and promote algae
Edward, I do not have a water ...
07:34 PM - GraphicGr8s quoted Hoppy in post 40 Breeder build - DIY Red Oak Stand
Just for brainstorming: c...
05:28 PM - Empress Akitla quoted Hoppy in post What is this and how do I get rid of it?
Are the light bulbs incand...
05:10 PM - Hoppy quoted djrichie in post Activated carbon or no?
If you use liquid fert. the c...
05:10 AM - jeffkrol quoted Hoppy in post A Better PAR Meter
I wonder if the old model ...
04:40 AM - IUnknown quoted Hoppy in post Activated carbon or no?
... from the water. Hoppy, after the couple w...
01:04 AM - Greggz quoted Hoppy in post Problem making Nitrate Reference Solution
...it not working.) Hoppy thanks for the reply...
12:39 AM - m_t_r_86 quoted Hoppy in post 40 Breeder build - DIY Red Oak Stand
I suggest you continue wit...
02-28-2016
10:08 PM - Greggz quoted Hoppy in post Problem making Nitrate Reference Solution
You have to follow the nit...
09:00 PM - Hoppy quoted bbrin12b in post 12 gallon long stand ideas?
very good point, well... what...
08:48 PM - Hoppy quoted Nordic in post CO2 from air... hear me out.
Lol, the trick with air bub...
02-27-2016
10:46 PM - Hoppy quoted fablau in post CSM+B Toxicity Experiment
I am talking about his stat...
10:36 PM - Hoppy quoted cube860 in post 12 gallon long stand ideas?
I just have a cheap heater i...
06:04 PM - jeffkrol quoted Hoppy in post A Better PAR Meter
Has anyone seen one of the...
04:41 PM - Hoppy quoted Edward in post High nutrients promote algae growth and are toxic to aquatic life
I think this test gets more...
03:13 AM - Postal quoted Hoppy in post How much light is too much?
With all four bulbs runnin...

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