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Search: Keyword(s): ; Posts Made By: Hoppy
Forum: Lighting   02-02-2017, 10:23 PM
Replies: 23
Views: 918
Posted By Hoppy
If I am not a member here I can't do PMs here. ...

If I am not a member here I can't do PMs here. Our PMs are monitored too, to remove all references to EBay listings, etc. Speaking of which, that is another place that such a service might be...
Forum: Lighting   02-02-2017, 04:36 PM
Replies: 23
Views: 918
Posted By Hoppy
There is always an exchange of money with RAOK...

There is always an exchange of money with RAOK forum transactions. People have to send money to cover shipping when they get a RAOK item. And, very often that "shipping" payment exceeds the postage...
Forum: Tank Journals   02-01-2017, 11:52 PM
Replies: 17
Views: 1,056
Posted By Hoppy
http://i573.photobucket.com/albums/ss176/Hoppycali...

http://i573.photobucket.com/albums/ss176/Hoppycalif/DSCN4623_zpsu0naoizp.jpg

UPDATE:
My Hydrophila pinnatifida didn't do well at all. It was beginning to collect hair algae, as almost all of the...
Forum: Lighting   02-01-2017, 10:42 PM
Replies: 23
Views: 918
Posted By Hoppy
I'm not sure how long this loan program can go...

I'm not sure how long this loan program can go on. The moderators ruled that I can't do it, at least not on the RAOK forum. But, I have already started, on the For Sale forum. We will soon find...
Forum: Lighting   01-31-2017, 06:21 PM
Replies: 23
Views: 918
Posted By Hoppy
I posted my offer to loan out my PAR meter in the...

I posted my offer to loan out my PAR meter in the For Sale forum. Still no word from the moderators about using the RAOK forum.
Forum: Lighting   01-31-2017, 12:56 AM
Replies: 2
Views: 183
Posted By Hoppy
Apogee now tells us that a old style PAR meter...

Apogee now tells us that a old style PAR meter needs reads 8% low in water, and the new style reads 32% low. The problem is the one I struggled with when I was modifying lux meters into PAR meters. ...
Forum: Fertilizers and Water Parameters   01-29-2017, 10:16 PM
Replies: 28
Views: 4,781
Posted By Hoppy
I'm in the thinking stage of developing something...

I'm in the thinking stage of developing something in a bottle that will use hypnosis on the plants to make them really, really want to grow nicely.:nerd:

I will test it on my H. pinnatifida. That...
Forum: Lighting   01-29-2017, 10:12 PM
Replies: 23
Views: 918
Posted By Hoppy
Apparently the moderators here haven't given any...

Apparently the moderators here haven't given any thought to how the forum would handle a member who loans out something expensive routinely. I asked if it would be ok to do this through the RAOK...
Forum: Plants   01-27-2017, 06:57 PM
Replies: 13
Views: 626
Posted By Hoppy
How are the H. pinnatifida plants doing? I'm...

How are the H. pinnatifida plants doing? I'm asking because I have some that I planted 3 weeks ago, and they are alive, but not doing much in the way of growing. Just tiny shoots on some of them,...
Forum: DIY   01-27-2017, 06:51 PM
Replies: 94
Views: 2,783
Posted By Hoppy
I have been thinking about this. That switch is...

I have been thinking about this. That switch is very easy to turn on. One possibility would be a "cap" over the switch to protect it. Disconnecting the battery is the most reliable possibility,...
Forum: DIY   01-26-2017, 02:45 AM
Replies: 94
Views: 2,783
Posted By Hoppy
Good point! I will do that. This limitation has...

Good point! I will do that. This limitation has a good point too - it reduces it to being useful for planted tanks and nothing else, reducing the temptation to swipe it.
Forum: Tank Journals   01-25-2017, 11:42 PM
Replies: 17
Views: 1,056
Posted By Hoppy
I run it continuously. So far I don't see any...

I run it continuously. So far I don't see any evidence that I have more than 30 ppm of CO2, probably no more than 20 ppm, so it does no harm to run continuously. That also helps a bit in preventing...
Forum: Tank Journals   01-25-2017, 09:46 PM
Replies: 17
Views: 1,056
Posted By Hoppy
I finished a semi-DIY PAR meter today, and...

I finished a semi-DIY PAR meter today, and finally verified how much light I have. It is 40-50 PAR, 50 at the center, dropping off a bit off the center. So, this really is a medium light tank, as I...
Forum: DIY   01-25-2017, 09:38 PM
Replies: 94
Views: 2,783
Posted By Hoppy
http://i573.photobucket.com/albums/ss176/Hoppycali...

http://i573.photobucket.com/albums/ss176/Hoppycalif/DSCN4622_zpsgkodpd0x.jpg

More good news. It works fine in a water filled aquarium, and the readings I got are very consistent with what I had a...
Forum: Fertilizers and Water Parameters   01-25-2017, 03:20 AM
Replies: 5
Views: 232
Posted By Hoppy
If you want 20 ppm of CO2 in your water you have...

If you want 20 ppm of CO2 in your water you have to diffuse 20 ppm of CO2 into the water, and keep it up at a rate that replaces the CO2 used by the plants, and lost from the water surface to the...
Forum: Lighting   01-25-2017, 12:48 AM
Replies: 23
Views: 918
Posted By Hoppy
I admit I am surprised! With the shoe on my foot...

I admit I am surprised! With the shoe on my foot I would have said $100 would be the most I would even consider providing as a security deposit. So, it may be a viable plan to ask for $100 or more...
Forum: DIY   01-24-2017, 10:44 PM
Replies: 94
Views: 2,783
Posted By Hoppy
You had a lot more confidence than I did:grin2:

You had a lot more confidence than I did:grin2:
Forum: DIY   01-24-2017, 10:14 PM
Replies: 94
Views: 2,783
Posted By Hoppy
I picked up a trim pot from Radio Shack,...

I picked up a trim pot from Radio Shack, https://www.radioshack.com/products/radioshack-10k-ohm-15-turn-cermet-potentiometer-trimmer then measured the resistance the slider connection gives - it was...
Forum: DIY   01-24-2017, 03:59 PM
Replies: 94
Views: 2,783
Posted By Hoppy
This project is at the "panic" stage! It seem...

This project is at the "panic" stage! It seem obvious that 9V doesn't work, so what's left is to try 5V. Using a $2 trim pot is the cheapest, easiest way to do this. A voltage regulator just...
Forum: DIY   01-24-2017, 02:07 AM
Replies: 94
Views: 2,783
Posted By Hoppy
I thought all Radio Shack stores closed! I see...

I thought all Radio Shack stores closed! I see there is still one near me, so I will be there tomorrow morning. They have exactly what I need - cheap!
Forum: DIY   01-24-2017, 12:55 AM
Replies: 94
Views: 2,783
Posted By Hoppy
The blue wire on the VM is negative - a ground. ...

The blue wire on the VM is negative - a ground. Now, I need to see if Frys has a 10K pot that isn't packaged with 9 others.
Forum: DIY   01-24-2017, 12:06 AM
Replies: 94
Views: 2,783
Posted By Hoppy
It is hooked up exactly as shown in that diagram....

It is hooked up exactly as shown in that diagram. When the cap is on the sensor it reads about 130, when it is off it reads about 150, while it is in a pretty bright fluorescent light. It does...
Forum: DIY   01-23-2017, 10:19 PM
Replies: 94
Views: 2,783
Posted By Hoppy
I did check the polarity several times, and...

I did check the polarity several times, and stopped when I noticed that the battery was hot. By then the battery voltage was down to 5.1 volts. So, I found a good battery and checked it to be sure...
Forum: DIY   01-23-2017, 09:28 PM
Replies: 94
Views: 2,783
Posted By Hoppy
Bad news! mistergreen tested it with his arduino...

Bad news! mistergreen tested it with his arduino and it worked ok, but when I hooked it back up to the battery it didn't work. In fact the battery burned out - twice - because the on/off switch was...
Forum: Lighting   01-23-2017, 03:38 PM
Replies: 23
Views: 918
Posted By Hoppy
Poll - PAR Meter loan

If you could borrow an Apogee PAR meter for a week, and had to send a security deposit of $50, $100, etc. to do so, but only had to pay about $20 for shipping both ways, would you borrow it? And,...
Showing results 1 to 25 of 250

 
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