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Search: Keyword(s): ; Posts Made By: Hoppy
Forum: DIY Today, 03:10 AM
Replies: 290
Views: 11,073
Posted By Hoppy
If you put two needle valves in series it becomes...

If you put two needle valves in series it becomes very difficult to adjust them so both are dropping the pressure. A slight change in one needle valve will make the other one either do all of the...
Forum: DIY 04-16-2015, 08:13 PM
Replies: 91
Views: 4,342
Posted By Hoppy
The potting of the internals did not eliminate...

The potting of the internals did not eliminate the water problem. I still get a drop in PAR as the sensor diffuser goes from being in air to being in water. The drop in PAR distorts the PAR...
Forum: DIY 04-16-2015, 06:58 PM
Replies: 17
Views: 314
Posted By Hoppy
I feel dumb for mentioning this, but I never once...

I feel dumb for mentioning this, but I never once thought of playing cards as shims for leveling the stand. That is a great, cheap, easy to use idea!
Forum: DIY 04-16-2015, 06:47 PM
Replies: 14
Views: 314
Posted By Hoppy
The problem with those spectral charts is that...

The problem with those spectral charts is that they are in lumens, and the lumen scale represents human eye sensitivity, not absolute energy as seen by plants. All radiation from black bodies is...
Forum: DIY 04-16-2015, 04:32 AM
Replies: 91
Views: 4,342
Posted By Hoppy
The PAR meter works fine with the photodiode...

The PAR meter works fine with the photodiode completely potted in clear epoxy! The calibration is the same as with the air pocket between the diffuser and diode. Tomorrow I will try it in water,...
Forum: DIY 04-15-2015, 12:50 AM
Replies: 91
Views: 4,342
Posted By Hoppy
Nobody has any thoughts about this? I tried...

Nobody has any thoughts about this? I tried filling in the gap behind the diffuser to make the diffuser and gel filters one solid mass. That seems to work better, but now I'm thinking I need to...
Forum: Fertilizers and Water Parameters 04-14-2015, 04:55 AM
Replies: 24
Views: 691
Posted By Hoppy
I think you are over concerned about dosing...

I think you are over concerned about dosing phosphates. If you don't have enough in the water, double the amount you dose each time. I routinely double my KH2PO4 dosages from what the EI tables...
Forum: DIY 04-14-2015, 03:18 AM
Replies: 91
Views: 4,342
Posted By Hoppy
I have been getting strange results when I test...

I have been getting strange results when I test these under water. Sometimes it works just as it does in air, other times the reading drops to about half of what it should be even with just a film...
Forum: DIY 04-14-2015, 01:51 AM
Replies: 91
Views: 4,342
Posted By Hoppy
Go to the For Sale forum and search for DIY PAR...

Go to the For Sale forum and search for DIY PAR Meter. I have a wait list for them right now.
Forum: DIY 04-14-2015, 01:23 AM
Replies: 20
Views: 3,077
Posted By Hoppy
No, it wouldn't support the weight well. It...

No, it wouldn't support the weight well. It would sag away from the load, where possible, leaving the tank supported at the ends. Plywood will gradually warp from loads of any kind unless it is...
Forum: Algae 04-12-2015, 04:29 PM
Replies: 25
Views: 619
Posted By Hoppy
The Finnex Planted Plus light gives less light...

The Finnex Planted Plus light gives less light than the Ray 2. It also included enough red light to make the tank look a lot better. I use one on a 65 gallon tank, also 24 inches high, hanging...
Forum: Fertilizers and Water Parameters 04-12-2015, 04:19 PM
Replies: 1
Views: 99
Posted By Hoppy
See...

See http://www.plantedtank.net/forums/showthread.php?t=21944 for the best information. How much you dose depends on how much light you have, because the more light, the faster the plants try to...
Forum: Fertilizers and Water Parameters 04-12-2015, 04:17 PM
Replies: 5
Views: 212
Posted By Hoppy
The only fertilizer chemicals that shouldn't be...

The only fertilizer chemicals that shouldn't be dosed at the same time are the various iron chemicals and phosphate chemicals (KH2PO4). Those two will form an iron + phosphate compound that is...
Forum: General Planted Tank Discussion 04-12-2015, 04:10 PM
Replies: 12
Views: 388
Posted By Hoppy
Do you have a photo showing the light fixture and...

Do you have a photo showing the light fixture and the reflectors? Or, what specific reflectors do you use?
Forum: Fertilizers and Water Parameters 04-12-2015, 04:02 PM
Replies: 11
Views: 318
Posted By Hoppy
If you use DIY CO2 an air pump will get rid of...

If you use DIY CO2 an air pump will get rid of the CO2 as fast as you add it. Use one or the other, but not both, unless you only use the air pump when the lights are off. What size tank do you...
Forum: Fertilizers and Water Parameters 04-11-2015, 04:48 PM
Replies: 9
Views: 264
Posted By Hoppy
When I see rocks with lots of holes in them I...

When I see rocks with lots of holes in them I always wonder if the rock is leaching minerals into the water. Many times that is why there are holes in the rocks. But, those look more like volcanic...
Forum: Fertilizers and Water Parameters 04-09-2015, 06:53 PM
Replies: 9
Views: 490
Posted By Hoppy
Your "red" plants need to be healthy and growing...

Your "red" plants need to be healthy and growing or they aren't likely to be well colored. They need carbon as a nutrient in order to do that. Use Excel, at 2 ml per 10 gallons of water, dosed...
Forum: Fertilizers and Water Parameters 04-09-2015, 06:50 PM
Replies: 13
Views: 332
Posted By Hoppy
How do you know you have high phosphate? If it...

How do you know you have high phosphate? If it is from testing the water with your test kit, I suggest you do a crude calibration of the test kit to be sure it is indicating correctly. See...
Forum: Lighting 04-09-2015, 06:47 PM
Replies: 12
Views: 464
Posted By Hoppy
Our eyes are very poor at judging light...

Our eyes are very poor at judging light intensity. It is certainly true that T12 bulbs will usually continue to light up for several years, but the light they produce will drop off considerably. ...
Forum: Lighting 04-09-2015, 06:43 PM
Replies: 24
Views: 526
Posted By Hoppy
I don't think you can get that much light from a...

I don't think you can get that much light from a CFL bulb in a typical dome reflector at that distance from the light. There are several T5HO light fixtures that will probably work.
Forum: Lighting 04-09-2015, 06:37 PM
Replies: 5
Views: 164
Posted By Hoppy
You can put a layer of fiberglass window screen...

You can put a layer of fiberglass window screen between the light and the tank, and that will reduce the light intensity by about 40%. It is easy to do and very effective.
Forum: Fertilizers and Water Parameters 04-07-2015, 04:00 AM
Replies: 9
Views: 298
Posted By Hoppy
We tend to over complicate things when we start...

We tend to over complicate things when we start looking at pH, which isn't even a critical parameter. We also tend to attribute to KH a status it doesn't really have. The primary buffer in our...
Forum: Substrate 04-05-2015, 08:13 PM
Replies: 14
Views: 556
Posted By Hoppy
The fish look like penguin tetra,...

The fish look like penguin tetra, http://www.liveaquaria.com/product/prod_display.cfm?c=830+890+1579&pcatid=1579
Forum: Low Tech Forum 04-05-2015, 08:07 PM
Replies: 2
Views: 277
Posted By Hoppy
The single fluorescent tube light should be ...

The single fluorescent tube light should be plenty for low light plants.
Forum: DIY 04-05-2015, 03:41 AM
Replies: 12
Views: 359
Posted By Hoppy
You can get considerably more light out of those...

You can get considerably more light out of those SMD strips if you apply the power at both ends of the strip. The LEDs are in parallel within each strip, so there is no reason not to supply power to...
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