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Old 10-10-2010, 02:25 AM   #1
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Is X-Ray film safe?

Ok, this one might take someone who knows a little something about X-Ray film.

I was planning to use some strips of blank, developed X-Ray film to block light as part of a filtration system I am building for a 125 Reef. This is for a Turf-Algae Scrubber. You don't need to know what that is, all you need to know is that it helps to block light from part of the system to prevent clogging due to algae growth where you don't want it.

My hands smell like film negative after handling this x-ray film, and now I'm wondering if it is safe to use. It would be in contact with the tank water. Is there some way to rinse it enough where it would be OK?
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My tanks: 120 Reef w/L2 Algae Scrubber, 60 Reef Pond w/floating Algae Scrubber, 40 Breeder Reef w/L2 UAS Tester Algae Scrubber
I maintain: 144 SW Reef w/L2 Algae Scrubber | 200 SW Reef w/L4 Algae Scrubber
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Old 10-10-2010, 02:40 AM   #2
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An additional note - I hadn't rinsed the film. I just did that (washed it with Dawn) and the smell is pretty much gone. I will probably let is soak overnight in RO water just to make sure, but I think it's ok now. Still would like any comments from anyone familiar with the film development process and how safe/not safe this idea would be.
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My tanks: 120 Reef w/L2 Algae Scrubber, 60 Reef Pond w/floating Algae Scrubber, 40 Breeder Reef w/L2 UAS Tester Algae Scrubber
I maintain: 144 SW Reef w/L2 Algae Scrubber | 200 SW Reef w/L4 Algae Scrubber
Special knowledge: Algae Scrubbers, Acrylic Fabrication
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Old 10-10-2010, 02:40 AM   #3
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You just need some thin plastic, right? just use something like the dividers you put in a note book. let me know how the scrubber turns out. I am going to do the same or the biopelets in a reactor.
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Old 10-12-2010, 10:25 AM   #4
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Couldn't you just paint the parts you don't want illuminated? Either that, or get some plastic from the craft shop? I wouldn't trust putting any film in my tank. Too many chemicals for my liking.
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Old 10-12-2010, 11:50 AM   #5
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Water is actually running over the part that needs to be blocked, so it's not anything that can be painted. I am ditching the x-ray film idea and will be stopping by a craft store to see what they have. Thanks mdaniel2882 and BigJim - I don't know why I didn't think of that. Overthinking things is sometimes a downside of being an engineer!!

FYI, I will be posting the build to the thread I run for this system...will link to it when I get that post up.
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My tanks: 120 Reef w/L2 Algae Scrubber, 60 Reef Pond w/floating Algae Scrubber, 40 Breeder Reef w/L2 UAS Tester Algae Scrubber
I maintain: 144 SW Reef w/L2 Algae Scrubber | 200 SW Reef w/L4 Algae Scrubber
Special knowledge: Algae Scrubbers, Acrylic Fabrication
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Old 10-12-2010, 12:07 PM   #6
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Quote:
Originally Posted by Floyd R Turbo View Post
Overthinking things is sometimes a downside of being an engineer!!
I know the feeling. Employ the KISS principle at all times.
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Old 10-12-2010, 12:59 PM   #7
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What about Krylon Fusion, I heard that is safe for aquarium use.
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Old 10-12-2010, 01:01 PM   #8
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The light needs to be blocked at the top of this screen, where it inserts into the pipe. I was going to put some black acrylic on the inside of the housing, but the light from the reflectors would still get to that area, so blocking it by adding some opaque plastic at the screen is really the only way to make it work right.



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My tanks: 120 Reef w/L2 Algae Scrubber, 60 Reef Pond w/floating Algae Scrubber, 40 Breeder Reef w/L2 UAS Tester Algae Scrubber
I maintain: 144 SW Reef w/L2 Algae Scrubber | 200 SW Reef w/L4 Algae Scrubber
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Old 10-12-2010, 03:40 PM   #9
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Perfect

I found the perfect thing. I went to a hobby store, and they had this



it's a little thicker than I hoped, but it it exactly what I needed and it only cost $2.
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I maintain: 144 SW Reef w/L2 Algae Scrubber | 200 SW Reef w/L4 Algae Scrubber
Special knowledge: Algae Scrubbers, Acrylic Fabrication
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Old 10-15-2010, 04:25 AM   #10
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May I ask... what are you building?
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