The Planted Tank Forum - Search Results
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > Search Forums

Showing results 1 to 25 of 250
Search took 0.20 seconds.
Search: Keyword(s): ; Posts Made By: Hoppy
Forum: DIY Yesterday, 11:46 PM
Replies: 52
Views: 1,350
Posted By Hoppy
A typical planted tank hobbyist is not going to ...

A typical planted tank hobbyist is not going to be at all interested in this type of product. That typical hobbyist is going to want to be able to stick something in the light and read a number...
Forum: DIY Yesterday, 06:02 PM
Replies: 52
Views: 1,350
Posted By Hoppy
Both red and blue problem! It is essentially a...

Both red and blue problem! It is essentially a green light detector, like our eyes are.
Forum: DIY Yesterday, 05:57 PM
Replies: 30
Views: 746
Posted By Hoppy
After another night of sub-conscious...

After another night of sub-conscious thinking:hihi: I think the reason your white acrylic works is that light doesn't travel through it in a straight line. The pigment in the acrylic deflects light...
Forum: DIY 03-04-2015, 11:26 PM
Replies: 30
Views: 746
Posted By Hoppy
The photodiode face isn't flat. ...

The photodiode face isn't flat.

http://i573.photobucket.com/albums/ss176/Hoppycalif/photodiode_zpsuv34znt6.jpg

The only way to get the diffuser right against the filter on the diode is to...
Forum: DIY 03-04-2015, 07:43 PM
Replies: 30
Views: 746
Posted By Hoppy
I haven't tested this specifically. But, my...

I haven't tested this specifically. But, my experience with various diffuser materials is consistent with this explanation. I'm not sure what a good test would be.

I believe the Apogee PAR...
Forum: DIY 03-04-2015, 04:31 PM
Replies: 30
Views: 746
Posted By Hoppy
I think I understand my diffuser-under-water...

I think I understand my diffuser-under-water problem now. A few years ago someone figured out how light is reflected back into the tank from the front and back glass - the light reflects from the...
Forum: DIY 03-03-2015, 04:48 PM
Replies: 74
Views: 2,579
Posted By Hoppy
Thank you for taking the time and effort to...

Thank you for taking the time and effort to report on this. I enjoy experimenting with stuff, too, so I may try this on my 65 gallon low light tank. CO2 is very helpful even with low light, but you...
Forum: DIY 03-02-2015, 10:31 PM
Replies: 7
Views: 185
Posted By Hoppy
The better way depends on how accurate your...

The better way depends on how accurate your measuring equipment is. If you can measure 180 mg accurately that is a good method, but if you don't have the equipment to do that, you might be able to...
Forum: DIY 03-02-2015, 05:30 AM
Replies: 52
Views: 1,350
Posted By Hoppy
How does a diffuser flatten out the spectral...

How does a diffuser flatten out the spectral response? That response is largely determined by the basic response of a silicon diode to light.
Forum: DIY 03-02-2015, 04:35 AM
Replies: 52
Views: 1,350
Posted By Hoppy
Since this is an obsession for me, today I...

Since this is an obsession for me, today I started thinking about the Excelitas diode again. I found (again) the spectral response curve for it, and blew it up so I could more easily read the...
Forum: DIY 02-28-2015, 11:07 PM
Replies: 52
Views: 1,350
Posted By Hoppy
We have to keep in mind that we are not looking...

We have to keep in mind that we are not looking to make a PUR meter, but a PAR meter, and that means one that measures all light between 400 and 700 nm, with equal response to all of the spectrum in...
Forum: DIY 02-28-2015, 06:02 AM
Replies: 52
Views: 1,350
Posted By Hoppy
Assuming you could find a 680 nm cut off filter...

Assuming you could find a 680 nm cut off filter that cost a few dollars each, and used that #3203 filter, you would have a good looking response curve above about 460 nm, but below that the response...
Forum: DIY 02-28-2015, 02:44 AM
Replies: 52
Views: 1,350
Posted By Hoppy
Those are interesting photodiodes, but the...

Those are interesting photodiodes, but the perfect spectral response is equal sensitivity from 400 to 700, not a slope from 400-700, and to be useful it also needs a IR/UV blocking filter with a...
Forum: DIY 02-27-2015, 08:35 PM
Replies: 52
Views: 1,350
Posted By Hoppy
I have not been able to get acceptable accuracy,...

I have not been able to get acceptable accuracy, compared to the Apogee PAR meter, for either sunlight or Finnex Planted Plus light. So, I'm going to drop this effort for now, perhaps until I think...
Forum: Fertilizers and Water Parameters 02-26-2015, 06:17 AM
Replies: 17
Views: 411
Posted By Hoppy
If wondering about nutrient deficiencies, trying...

If wondering about nutrient deficiencies, trying to find a way to pinpoint what they are, is fun for you, the PPS Pro method is a good fertilizing method to use. But, if you prefer not to have to do...
Forum: Lighting 02-26-2015, 06:09 AM
Replies: 7
Views: 258
Posted By Hoppy
Ideally you would mount your light about a mile...

Ideally you would mount your light about a mile above the tank, to best simulate the sun as a light source. But, that would present a few physical problems :hihi: The reason for doing that would be...
Forum: DIY 02-25-2015, 06:17 AM
Replies: 52
Views: 1,350
Posted By Hoppy
Interesting information on IR blocking filters. ...

Interesting information on IR blocking filters. Maybe by using a larger aperture, with a longer distance between filter and diode, it might work better. But, probably at a price.
Forum: DIY 02-24-2015, 07:36 PM
Replies: 52
Views: 1,350
Posted By Hoppy
Back to the drawing board:icon_frow This morning...

Back to the drawing board:icon_frow This morning I set up the Planted Plus so I could make more accurate readings from it at a distance of about 15 inches. My PAR meter reads about 66% of the...
Forum: DIY 02-24-2015, 03:43 AM
Replies: 52
Views: 1,350
Posted By Hoppy
DIY PAR Meter - 2015 Version

For the past 2+ months I have been trying to develop a better design for my PAR meters, made from lux meters. My goal was to make one that could give a reasonably accurate reading of the PAR from a...
Forum: Fertilizers and Water Parameters 02-23-2015, 03:11 AM
Replies: 6
Views: 248
Posted By Hoppy
Sometimes GH Booster does a lot of good when...

Sometimes GH Booster does a lot of good when dosed with water changes. My water is pretty soft, from the tap, and most of the year it is almost all river water. The last time I checked the GH,...
Forum: General Planted Tank Discussion 02-23-2015, 02:54 AM
Replies: 6
Views: 346
Posted By Hoppy
If you use high light you need the CO2 bubble...

If you use high light you need the CO2 bubble rate just about as high as you can get it without harming the fish. If you let it run at that high bubble rate at night, when the plants aren't using...
Forum: Plants 02-20-2015, 05:51 AM
Replies: 8
Views: 340
Posted By Hoppy
With 50ish PAR lighting you need Excel, or...

With 50ish PAR lighting you need Excel, or better, pressurized CO2. Otherwise the plants can't grow as fast as the light is driving them to grow. That makes them easy targets for algae. I had a 65...
Forum: Algae 02-20-2015, 04:31 AM
Replies: 3
Views: 244
Posted By Hoppy
What lighting do you use? What brand light...

What lighting do you use? What brand light fixture, what bulbs, etc.? How high is the light fixture from the substrate?

How is your DIY CO2 set up, number of bottles, how often you change the...
Forum: Algae 02-19-2015, 08:28 PM
Replies: 7
Views: 297
Posted By Hoppy
Algae grow best on unhealthy or dead plant parts....

Algae grow best on unhealthy or dead plant parts. If those plant leaves are old, not growing, and beginning to die, algae will quickly colonize them. Typically we cut off the upper parts of plants...
Forum: Algae 02-19-2015, 08:23 PM
Replies: 30
Views: 1,066
Posted By Hoppy
Let's go back to square one! What light fixture...

Let's go back to square one! What light fixture are you using - manufacturer, how many bulbs, what color temperature, etc.? And, what is the distance from the light fixture to the substrate? With...
Showing results 1 to 25 of 250

 
Forum Jump

All times are GMT. The time now is 02:25 PM.


Powered by vBulletin®
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012