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Search: Keyword(s): ; Posts Made By: mcarroll
Forum: Lighting 03-14-2015, 04:49 AM
Replies: 406
Views: 176,140
Posted By mcarroll
You can see a link above I posted (#365...

You can see a link above I posted (#365 (http://www.plantedtank.net/forums/showpost.php?p=7563154&postcount=365)) a list of existing PAR<>lux conversion factors....just hoping someone with both...
Forum: Lighting 03-13-2015, 05:54 PM
Replies: 406
Views: 176,140
Posted By mcarroll
In the right ballpark - definitely the correct...

In the right ballpark - definitely the correct number of digits! :)

...but still seems on the high side when I consider the effectiveness of the basic lux meter. Based on my experience so far,...
Forum: Lighting 03-13-2015, 03:20 PM
Replies: 406
Views: 176,140
Posted By mcarroll
And 1300% more expensive than a lux meter. ...

And 1300% more expensive than a lux meter. (Which is better than the usual recommendation at 2000% more expensive.) :-)

It's neat, but not priced for the crowd - which it really needs to be. ...
Forum: Lighting 03-12-2015, 06:17 PM
Replies: 406
Views: 176,140
Posted By mcarroll
Excellent thread...as was the original....which I...

Excellent thread...as was the original....which I was just reading by chance of an unrelated Google search.

Hoppy posted:

http://www.plantedtank.net/forums/showthread.php?t=105774

...
Forum: Lighting 03-12-2015, 05:44 PM
Replies: 15
Views: 619
Posted By mcarroll
Thanks for posting this with lux units! -Matt

Thanks for posting this with lux units!

-Matt
Forum: General Planted Tank Discussion 09-07-2013, 11:19 PM
Replies: 26
Views: 2,434
Posted By mcarroll
I don't think there's much risk to trying a...

I don't think there's much risk to trying a little peroxide - would stay away from antibiotics though.

Are the other areas you're seeing it relatively low or high flow? Same plant or on other...
Forum: General Planted Tank Discussion 09-05-2013, 10:49 PM
Replies: 26
Views: 2,434
Posted By mcarroll
Ditto on the flow recommendations. With it being...

Ditto on the flow recommendations. With it being a corner and having that rock in the way (=turbulence=reduced flow) it's a prime candidate for being a dead spot. And as suggested it may be...
Forum: DIY 01-16-2013, 06:04 AM
Replies: 684
Views: 136,065
Posted By mcarroll
Unbelievably well said! There's a lot of truth...

Unbelievably well said! There's a lot of truth in that statement and I think it bears repeating. :-)

(Yes, I meant it....everyone read that again! ;) )

Having a $20 LUX meter to go by is so...
Forum: Lighting 01-04-2013, 08:53 PM
Replies: 406
Views: 176,140
Posted By mcarroll
To the degree you are confident of your current...

To the degree you are confident of your current numbers, a bit of math (http://en.wikipedia.org/wiki/Inverse-square_law#Light_and_other_electromagnetic_radiation) should give you a workable number...
Forum: Lighting 01-04-2013, 08:14 PM
Replies: 406
Views: 176,140
Posted By mcarroll
A photography meter is probably reading in LUX. ...

A photography meter is probably reading in LUX. If so...

One answer is that "no" you can't convert from LUX to PAR with a standard conversion.

Another is that "yes" you can convert as long as...
Forum: Fish 09-19-2012, 07:01 AM
Replies: 7
Views: 1,737
Posted By mcarroll
Generally +1's across the board! :) This is one...

Generally +1's across the board! :) This is one of my all-time favorite fish.

Mostly restating what's already been said, don't mistake the African Brown Knife for being an aggressive fish. ...
Forum: Plants 09-19-2012, 01:41 AM
Replies: 11
Views: 463
Posted By mcarroll
Interesting....tagging along. I had good...

Interesting....tagging along.

I had good luck with moss back in my day (as well as val's crypts and some others), but in the same tank couldn't get j. fern to grow to save myself.

Was running...
Forum: Shrimp & Other Invertebrates 09-19-2012, 01:23 AM
Replies: 19
Views: 946
Posted By mcarroll
Take another look/think around....these guys...

Take another look/think around....these guys aren't all wrong! :-)

There is stagnant water in every sink or bath drain trap, sump wells, air conditioning drain lines, etc as well as the more...
Forum: Plants 09-19-2012, 12:51 AM
Replies: 7
Views: 1,056
Posted By mcarroll
More than likely just spores, as mentioned...

More than likely just spores, as mentioned already...can you post a photo, or link to one that looks like what you see?

-Matt
Forum: General Planted Tank Discussion 09-19-2012, 12:44 AM
Replies: 12
Views: 636
Posted By mcarroll
Just one other tip to add on the pile here as you...

Just one other tip to add on the pile here as you go forward:

Freshwater and saltwater tanks are both as much work to keep as you design them to be. (And while salt and fresh have obvious...
Forum: Lighting 09-19-2012, 12:29 AM
Replies: 6
Views: 400
Posted By mcarroll
250w would be the "standard" choice, but it...

250w would be the "standard" choice, but it depends a lot on what you want in the tank and where. 150w bulbs is not "a lot" of light for a 24" deep tank, but could be appropriate...depends. :) ...
Forum: Shrimp & Other Invertebrates 09-19-2012, 12:10 AM
Replies: 28
Views: 2,014
Posted By mcarroll
"Scuds" are actually an amphipod...

"Scuds" are actually an amphipod (http://en.wikipedia.org/wiki/Amphipoda)....generally they are detritus consumers. One of the good guys!!!

My bet is that the moss is already dying (in part, or...
Forum: Equipment 09-18-2012, 10:35 PM
Replies: 32
Views: 1,580
Posted By mcarroll
Good points you bring up! As to the warm...

Good points you bring up!

As to the warm water problem... I guess it depends on what scenario you have in mind, but a 10-20% water change with 84[censored]water wouldn't be the end of the world....
Forum: Tank Journals 09-18-2012, 10:27 PM
Replies: 37
Views: 4,016
Posted By mcarroll
Dang - what happened to all the pics? Nothing to...

Dang - what happened to all the pics? Nothing to refer back to in most posts now. Any chance you could repost a pic of your light hanger?

Thanks!

-Matt
Forum: General Planted Tank Discussion 09-18-2012, 10:20 PM
Replies: 18
Views: 1,774
Posted By mcarroll
This is the time of year for a lot of us when the...

This is the time of year for a lot of us when the weather is "in between" and the HVAC system doesn't run very often.

HVAC cools or heats the air (coincidentally drying it a little in the...
Forum: Equipment 09-18-2012, 08:46 PM
Replies: 5
Views: 531
Posted By mcarroll
Ouch! :icon_eek: My sympathies - been there one...

Ouch! :icon_eek: My sympathies - been there one too many times myself.

You must have some serious water pressure on that well system! :-) Have you ever checked it with one of these WATTS IWTG...
Forum: Equipment 09-18-2012, 08:33 PM
Replies: 32
Views: 1,580
Posted By mcarroll
Seth, if your fish, plants, etc seem to be...

Seth, if your fish, plants, etc seem to be showing no stress and you're just noticing the temp increase, I am with you on just riding it out....no sense changing anything if they aren't telling you...
Forum: Lighting 09-18-2012, 07:39 AM
Replies: 2
Views: 542
Posted By mcarroll
As far as the coverage, 40 optics at 18" from...

As far as the coverage, 40 optics at 18" from the water surface should give you a radius of coverage that's about +6.5" around the perimeter formed by the LED's. The outer 10% or so of that radius...
Forum: Lighting 09-18-2012, 06:51 AM
Replies: 10
Views: 1,390
Posted By mcarroll
Indeed! I hadn't seen that before reading this...

Indeed! I hadn't seen that before reading this thread - very cool indeed. The related solderless mounts (http://makersled.com/?p=519) make it even cooler!



Thanks for posting that link -...
Forum: Lighting 09-12-2012, 08:58 PM
Replies: 4
Views: 497
Posted By mcarroll
If you are on crunch time, that makes it a tough...

If you are on crunch time, that makes it a tough situation.

It's a long shot IMO, but can you get a part number from the driver? Maybe there's an on-board way to adjust it while you have it apart...
Showing results 1 to 25 of 29

 
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