decided to go with led lighting for 28 nano.

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mos90

Feeder Fish
MFK Member
Jul 20, 2009
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rome,ny
when i bought my 28 jbj nano with cf lighting i wasnt planning on doing coral at all. just a fowlr. after adding a few corals i cant stop. i love the looks of them. in the beginning i was buying just medium light corals. now the plan is some high light sps corals towards the top of the tank.

im sure the 105w cf meets the minimum light requirements of these corals but after thinking about it i like the idea of not having to change bulbs for 50000 hours and i like the idea of having the power of a 150w hqi without the heat. so i took the plunge and order the led hood upgrade.

it has 25x3w 14000k leds, 4x3w actinic and 2 night leds. it should be really nice. hopfully it adds to my coral growth.

my current lights are 6700/10000k. i dont like the colors of the corals compared to 14000k lighting.
 
mos90;4570007; said:
when i bought my 28 jbj nano with cf lighting i wasnt planning on doing coral at all. just a fowlr. after adding a few corals i cant stop. i love the looks of them. in the beginning i was buying just medium light corals. now the plan is some high light sps corals towards the top of the tank.

im sure the 105w cf meets the minimum light requirements of these corals but after thinking about it i like the idea of not having to change bulbs for 50000 hours and i like the idea of having the power of a 150w hqi without the heat. so i took the plunge and order the led hood upgrade.

it has 25x3w 14000k leds, 4x3w actinic and 2 night leds. it should be really nice. hopfully it adds to my coral growth.

my current lights are 6700/10000k. i dont like the colors of the corals compared to 14000k lighting.
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Just want to throw this out there, but the 50000 hour rating is rather nebulous.

First, it depends on how much current you feed them.

Then it depends on how cool you can keep them. I have seen some people mod the nano/bio cubes to have the led lighting mount where the MH or PC lighting originally was, and that concerns me. LEDs throw their heat to the back, not forward where the light is projecting like all other lighting.

Now, if you keep it cool enough, and drive the LEDS @ 70% of their current capacity (I think that is considered optimal for life and output), you still have to worry about your drivers and regulators taking a dump on you. Just make sure you pick out qaulity supplies.

Have fun. People I talk to have said that have seen amazing growth with their LED setups.

And post pics.
 
current is 700ma. even if i get 25000 hours im happy. this setup had 4 cooling fans and overheat protection. ill post before and after picts.

the hood i bought is not a retrofit. it is made by jbj for there led system.
 
now that i have more intense lighting, instead of a 12/12 cycle should back off to 10/14 for a while?
 
mos90;4570122; said:
current is 700ma. even if i get 25000 hours im happy. this setup had 4 cooling fans and overheat protection. ill post before and after picts.

the hood i bought is not a retrofit. it is made by jbj for there led system.
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Ahh, ok. I know what you are talking about now. I had forgot about JBJ releasing their newer tanks with LED hoods. I thought you were talking about the retrofits stuff from nanotuners or something similar.

mos90;4570147; said:
now that i have more intense lighting, instead of a 12/12 cycle should back off to 10/14 for a while?
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Might be a good idea. You might bleach some corals, so gradually introducing them to the new light sounds like the way to go.
 
i thought about getting a retro from nanotuners but i cant see paying more money then the hood from jbj then having to do it myself.

they used to have complete hoods but i dont see them on the site anymore.
 
There is a lot of good info on DIY led stuff at www.reef2reef.com

I was considering this for a long time, but just dont have the time, money, or knowledge to feel okay about doing it. The resources there would be worth looking into however.
 
should be here friday.. im also adding a calcium reactor. we will see how that works.i already had a c02 setup and ph controller so the cost wasnt too bad.
 
mos90;4579696; said:
should be here friday.. im also adding a calcium reactor. we will see how that works.i already had a c02 setup and ph controller so the cost wasnt too bad.
Click to expand...

This sounds like it is going to be badass. :D
 
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