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Old 07-16-2016, 03:26 PM   #1
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DIY Hoods

Needing a little advice on projects to upgrade a couple of tank hoods in the near future. I suppose I'm a fairly competent all-around DIY'er, but this will involve water and electricity in close proximity, so mistakes are going to be pretty much verboten, at least from a fishy health standpoint!

There's no shortage of design ideas available, but my biggest worry is the aforementioned lighting issue. I want to re-use a pair of LED modules that seem to provide plenty of light and been working great for almost a year now over the big tank. They look like this:



Mounting and integrating them into the new hood should pose little problem, except I'm not sure what if any, separation or water barrier is required. They presently sit atop a crappy glass cover that's got to go. I guess my questions are: Do I need to make a plexi or polycarbonate surround barrier to shield them from moisture inside the new hood as they are now above the glass top?

I thought maybe a couple small fan extractors would do the trick, or maybe just RTV'ing the assembly cracks around the units. Dunno.

I like to keep things simple, but never at the expense of safety. TIA!
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Old 07-20-2016, 12:35 PM   #2
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You guys are just waiting to see how long it takes to electrocute myself, aren't you!
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Old 07-21-2016, 07:35 AM   #3
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DIY Hoods

Still thinking

Just checking but there is a glass top between the water and lights? Kind of out my field as always gone safe. Couple of fish shops here that ring a bell on this but rare to go to now.
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Old 07-25-2016, 10:37 PM   #4
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I used to have a tank with a wooden hood and the light was mounted on the inside
and it was exposed to moisture , and it rusted till it fell apart , yes I'd figure find some sort of barrier.
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Old 07-26-2016, 10:31 AM   #5
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Quote:
Originally Posted by 54seaweed View Post
...and it rusted till it fell apart
Yes, this is what I'm anticipating. And even with mitigation, I suspect equipment lifespan will be shortened by the environment.

So I'm going a different direction with 1/4" Lexan. The big issue for me is having a top opening larger than what you get with the standard glass tops. I have some large pieces of driftwood that simply don't fit through the openings. It makes cleaning a real PITA.
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Old 10-24-2016, 10:27 PM   #6
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I use a router to cut a groove around the hood, I then slide a piece of glass into that groove, that way the lights are shielded from water.

There is a rabbet cut also, to rest the hood on the tank's frame
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Old 10-25-2016, 06:37 AM   #7
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Originally Posted by jad2411 View Post
I use a router to cut a groove around the hood, I then slide a piece of glass into that groove, that way the lights are shielded from water.

There is a rabbet cut also, to rest the hood on the tank's frame
I imagined something like that would be the right way to do it, Wish I was a more skilled woodworker.
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Old 10-25-2016, 01:25 PM   #8
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Here's one of my lids, for that one I used 5050 LED modules in white and blue:

https://www.amazon.com/Rextin%C2%AE-...7416061&sr=8-5

and one of these to change from white to blue
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old 10-25-2016, 01:28 PM   #9
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Here's another one, same process as above



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