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Old 06-07-2011, 12:04 AM   #1
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blacklight harmful??

i currently have a planted 20g... i recently completed a DIY 2-bulb hood, one bulb being a 50/50 (for normal daytime use) and a smaller 18" blacklight (for night time use).. i noticed that some of my PLANTS have started to turn a brownish color and die.....is it possible that the blacklightcould be killing my plants??
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Old 06-07-2011, 12:17 AM   #2
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Quote:
Originally Posted by negligent_inmate
i currently have a planted 20g... i recently completed a DIY 2-bulb hood, one bulb being a 50/50 (for normal daytime use) and a smaller 18" blacklight (for night time use).. i noticed that some of my PLANTS have started to turn a brownish color and die.....is it possible that the blacklightcould be killing my plants??
What kinda plants do u have? It's most probably because Ur plants can't use the light from both ur lights. But I'm not an expert with lights. I'll leave that to plant guru mfdrookie516
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Old 06-07-2011, 01:35 AM   #3
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To be honest, I know nothing about plants, I simply bought them to give some coverage. Imma do some research and get the plant names and put them up on here...
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Old 06-07-2011, 02:03 AM   #4
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Post some pics. People on aa are good at identifying plants.
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Old 06-07-2011, 02:44 AM   #5
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It'll also help to know what your lightng is. Wattage, color spectrum (ie 6400K, etc) and how long your photoperiod is.
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Old 06-07-2011, 09:07 AM   #6
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I don't think a blacklight will hurt anything... I'm pretty sure the sun emits the same color in some spectrum or another. I'd say the reason they're turning brown is from insufficient lighting. A 50/50 bulb only provides a little bit of usable light. I'd swap it out for a true daylight bulb (something in the 6500k-10,000k range). The wattage and type of bulb will have some play in what plants you can keep as well.
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Old 06-07-2011, 02:42 PM   #7
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Im running a 24"florescent zoo-med reefsun 50/50 for my main light..and a GE 18"florescent blacklight blue 15w for my night light.....I just think I figured out what's causing the plants to die off....when I did the diy hood...I had to remove the white reflective background from behind my daytime bulb...and being that there s another bulb beside it now, I lost a good bit of brightness to the right side of my tank...where my plants are..looks like Imma be doing a led hood sooner than expected..

**update -i found an 18"florescent full spectrum bulb I had laying around, I've replaced my blacklight with it and im going to run both for 2 days or so and see what happens
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Old 06-07-2011, 03:15 PM   #8
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