Survey for "Updating the WPG rule (theory)"

[crazyred]

volume: 29 gal.
dimensions: 30"L x 12"W x 18"H
light: NO 40 watts (2 tubes @ 20 w ea.) both bulbs 6700 k
level: low-med. low

Currently growing with sucess: anacharis, bacopa, amazon sword, java fern, several crypts, several anubias, banana plant, aponogeton sp., nyphaea lillies

[workfortheman]

volume: 29 g
dimensions: 30LX12Wx18H
light: 2x55 watts CF (6700K)
Level: very high

volume: 29 g
dimensions: 30LX12Wx18H
light: 2x20 watts NOF (6700K)
Level: low(+)
note: grows (asian) ambulia very well, ludwigia repens grows okay as does rotala rotundifolia and sunset hygro.

[Wizzard~Of~Ozz]

I'll be adding more detail to the results, just have to figure out a layout, then code it, I think I'm at about 400 lines of code so far... Takes a bit of time to produce.

[Purrbox]

Any plans to add option to select tank shape (ie standard or hex)? Just wondering if I should wait to enter my hex tank, or figure out how to fudge the numbers so it comes out approximately the same for square inches.

[Wizzard~Of~Ozz]

Never thought about hex or Bowfronts.. I'ld have to work out the numbers to figure out the Sq. Inches..

Rough results are available now. Just click on the light level, it will show you the range it was guesstimating on, and what level was claimed. Once there is more information available I can use the information to Refine the light level, so don't be too concerned if it said your tank is "sub low light" when you think it's low light etc..

[Jchillin]

I guess I guessed right.

[Wizzard~Of~Ozz]

Yeah, you're almost pushing moderate light.. close to borderline.

[czcz]

Here's my calcs for the survey.

Corrections: had ringfingers 29gal at 96watts instead of 97.5w earlier. From the wattage ratings and his final calcs, I believe Travis has 30w T12 and 56w T8. Since all calcs assume all the bulb's light hits the tank, I do not know how we factor in screw-in CF's common restrike problem (call it 40%?) so omitted them. Please correct me

          
          Eq T12 wpg  Lumens   Lumens/sq in   Lighting level
czcz_8_old     4.38   2064.4   13.23          med-high
czcz_8_now     6.88   3242.4   20.78          very high
czcz_20        1.5    1767      4.91          low
rich311K       4.87  10322     28.67          high-very high
Purrbox       14.02   2064.4   28.67          high-very high
Blazer_6       2.35    832      3.48          low
Blazer_10      3.5    2064.4   10.32          med+
gfink_10       3      1767      8.84          med
gfink_29       1.24   2120.4    5.89          low
Jchillin       1.98   8734      8.66          low
fish_old       1.5     883.5    4.42          very low
fish_now       4      2356     11.78          med
CGGorman       3.7   15244.8   14.44          med-high
Ozz            3.7   16372.8   18.95          high
LoneWolf       9.35  41288     47.79          high-very high
ringfinger_29  4.53   7741.5   21.5           high-very high
ringfinger_20  2.19   2580.5    7.17          low
ringfinger_10  1.5     883.5    4.42          low
travis         5.33  39254     30.29          very high
crazyred       1.38   2356      6.54          low-med low
WFTM_29high    5.11   8734     24.26          very high
WFTM_29low     1.38   2356      6.54          low+

Just going to wait for Ozz's results instead of continuing. Thank you!

[Purrbox]

I'm kinda wondering how much light you actually loose with the screwin flourescents? The 10Watts over my 5 Gallon Hex acts solidly Low - Medium Light, which is also right where Ozz's figures put my tank. Of course the screwin that I have is a standard double U as apposed to the spirals, if that makes any difference.

[Wizzard~Of~Ozz]

czcz, have you looked at http://woo.gotdns.com/Aquarium/ShowResults.php ?

You can view in depth results for each tank, comparisons of what the estimated light level is compared to what is calculated.

I'll take a bit of time tomorrow hopefully and enter in what's been posted in this thread.. but it will record everything.

Of course the screwin that I have is a standard double U as apposed to the spirals, if that makes any difference.

Yes that makes a bit of a difference..