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Search: Keyword(s): ; Posts Made By: skanderson
Forum: Tank Journals 04-24-2014, 03:14 PM
Replies: 83
Views: 7,625
Posted By skanderson
its been a while because i had to have back...

its been a while because i had to have back surgery last month which has kept me from doing anything in the tank for almost 2 months. now that im starting to recover i cleaned it out a bit and took...
Forum: DIY 04-10-2014, 09:48 PM
Replies: 28
Views: 1,891
Posted By skanderson
very nice looking unit cant wait to see its color...

very nice looking unit cant wait to see its color over a tank. i just picked up some of the luxeon cob arrays to try out over something. either my fw sump light or over my old reef tank frag tank...
Forum: General Planted Tank Discussion 04-07-2014, 12:36 AM
Replies: 24
Views: 1,075
Posted By skanderson
because if i was going to have plastic plants i...

because if i was going to have plastic plants i would feel obliged to keep plastic fish in there as well.
Forum: DIY 04-05-2014, 02:46 PM
Replies: 11
Views: 581
Posted By skanderson
the rule of thumb for curing silicone when...

the rule of thumb for curing silicone when building tanks is one day per mm of glass thickness. I believe that silicone cures faster with higher humidity.
Forum: Lighting 04-04-2014, 02:51 PM
Replies: 29
Views: 781
Posted By skanderson
2 quick points I would like to make. I believe...

2 quick points I would like to make. I believe that rules of thumb are correct about 90 percent of the time. btw that statement is also a rule of thumb. I have a rule of thumb for led lighting...
Forum: Lighting 04-04-2014, 02:43 PM
Replies: 43
Views: 1,940
Posted By skanderson
I haven't seen anyone mention this yet so here...

I haven't seen anyone mention this yet so here goes. I read somewhere recently that adding additional red wavelengths to a light helps reduce etiolation thus giving more compact growth. the study...
Forum: Lighting 03-28-2014, 05:12 PM
Replies: 76
Views: 3,129
Posted By skanderson
my diys use bridgelux arrays in 4k color at 80...

my diys use bridgelux arrays in 4k color at 80 cri. if I could find them I would use 20 or 30 watt 4k arrays in 90 cir, but 80 still looks good.
Forum: DIY 03-22-2014, 05:58 PM
Replies: 11
Views: 991
Posted By skanderson
I just bought 12 outdoor 10 watt floodlights that...

I just bought 12 outdoor 10 watt floodlights that claim to be 800 lumens each in cool white for 84 dollars shipped on [Ebay Link Removed] the look more substantial than that unit as well.
Forum: Lighting 03-22-2014, 05:57 PM
Replies: 76
Views: 3,129
Posted By skanderson
you could diy light that tank using 2 12 inch...

you could diy light that tank using 2 12 inch heatsinks with 2 30 watt bridgelux bxra emitters and 8 cree xml 7k, then if you want to be fancy put 4 red and 4 royal blue on as well. that should get...
Forum: DIY 03-11-2014, 09:20 PM
Replies: 8
Views: 543
Posted By skanderson
I would use a 30 watt bridgelux bxra in 5k or 4k...

I would use a 30 watt bridgelux bxra in 5k or 4k or better yet a luxeon cob in 5k with a cri of 80 or 90. if you get one that puts out over somewhere around 1500 lumens you would should have enough...
Forum: DIY 03-11-2014, 09:15 PM
Replies: 6
Views: 554
Posted By skanderson
love that board. the flexibility would be very...

love that board. the flexibility would be very useful.
Forum: Lighting 03-07-2014, 02:46 AM
Replies: 4
Views: 236
Posted By skanderson
to add to hoppys point if you dimensions are in...

to add to hoppys point if you dimensions are in inches that is a 220 I think. my 300 is lit by 150 watts of very efficient leds and would qualify as high light. I would aim for a max wattage of...
Forum: Lighting 03-07-2014, 02:42 AM
Replies: 4
Views: 236
Posted By skanderson
I would avoid the cool whites or at least mix...

I would avoid the cool whites or at least mix them with an equal amount of warmer light. things look very washed out to my eye with that color temp of light. the new emitter that is getting me...
Forum: Lighting 02-27-2014, 05:21 PM
Replies: 4
Views: 348
Posted By skanderson
my 300 cube is lit by 5 30 watt arrays and has...

my 300 cube is lit by 5 30 watt arrays and has very high lighting. i would not use 50 watters as you may end up with either way too much light or very spotty light. i would use 3 decent 20 or 30...
Forum: DIY 02-13-2014, 09:30 PM
Replies: 211
Views: 15,748
Posted By skanderson
just federally illegal in the US.

just federally illegal in the US.
Forum: DIY 02-12-2014, 05:52 AM
Replies: 211
Views: 15,748
Posted By skanderson
I would disagree with the efficiency wall idea. ...

I would disagree with the efficiency wall idea. 2 chip makers that I know of have announced 200 lumen per watt warm white emitters. this is about double of what is currently on the market. one of...
Forum: DIY 02-09-2014, 04:41 PM
Replies: 211
Views: 15,748
Posted By skanderson
how is the temp of the heatsink when they are all...

how is the temp of the heatsink when they are all on and lit up? if the temp is too high that could explain the lack of scaling on the addition of more strings.
Forum: DIY 02-09-2014, 04:36 PM
Replies: 6
Views: 314
Posted By skanderson
you have to love the fast accurate responses.

you have to love the fast accurate responses.
Forum: DIY 02-09-2014, 04:33 PM
Replies: 3
Views: 783
Posted By skanderson
interesting mix that may work well. I cant tell...

interesting mix that may work well. I cant tell what the spacing will be but I would try to keep the spacing on the reds even. that should minimize the disco issues that could occur. I think your...
Forum: DIY 02-09-2014, 12:05 AM
Replies: 12
Views: 530
Posted By skanderson
btw a cylinder tank like this would be ideal for...

btw a cylinder tank like this would be ideal for a circular reflector like hoppy was working on.
Forum: DIY 02-09-2014, 12:02 AM
Replies: 12
Views: 530
Posted By skanderson
I forgot to answer your question. I think that...

I forgot to answer your question. I think that 13 3 watt emitters would probably be enough light but depending on how high you are hanging it you may be able to use 60 degree optics. my leds are 30...
Forum: DIY 02-08-2014, 11:52 PM
Replies: 12
Views: 530
Posted By skanderson
I would avoid a generic array as the efficiency...

I would avoid a generic array as the efficiency and color may not be good. that being said I would bet a efficient 50 watt emitter would be plenty bright but I don't know what color I would go for...
Forum: DIY 02-08-2014, 11:49 PM
Replies: 12
Views: 530
Posted By skanderson
dam wrong pic again. one more try at it. ...

dam wrong pic again. one more try at it.
http://i1097.photobucket.com/albums/g357/skanderson2/africantankjan4013_zps8b6321d4.jpg...
Forum: DIY 02-08-2014, 11:48 PM
Replies: 12
Views: 530
Posted By skanderson
ok missed the other pic here it is. ...

ok missed the other pic here it is.
http://i1097.photobucket.com/albums/g357/skanderson2/africancubestartingplantingjan10005_zpsec29b4d3.jpg...
Forum: DIY 02-08-2014, 11:39 PM
Replies: 12
Views: 530
Posted By skanderson
I have a 65 gallon hex that is behind my main...

I have a 65 gallon hex that is behind my main tank just to grow plants and up the system volume. I places a diy led using a 6 inch makers heatsink over it. I will recheck the par numbers with all the...
Showing results 1 to 25 of 141

 
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