Go Back   Aquarium Advice - Aquarium Forum Community > Freshwater > Freshwater & Brackish - General Discussion
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 11-27-2022, 08:47 PM   #1
Aquarium Advice FINatic
 
Super_Blueberry's Avatar
 
Join Date: Jan 2012
Location: Esko, MN
Posts: 654
Pros and Cons of Blacklight

Just looking for the pros vs cons of using blacklighting as a supplemental light source on top of the ~5000k led general lighting I have for my 100g planned tank. Iíve used blue led lights in the past but never got that color pop I would love to see from some of my guys. And maybe with the six 4í led Ďtubesí I simply canít because itís too much white light to overcome.

__________________
Super_Blueberry is offline   Reply With Quote
Old 11-28-2022, 12:23 AM   #2
Aquarium Advice FINatic
 
Join Date: Oct 2022
Location: Perth in Western Australia
Posts: 846
Black lights generally produce ultraviolet A (UV A) or ultraviolet B (UV B) wavelengths of light. These should not be used on aquariums or around people because they can cause skin cancer and cataracts.

Fish from rainforest or blackwater habitats are not normally exposed to UV A or B in the wild and should not be exposed to excessive UV light in the aquarium.

Albino fishes should not be exposed to UV light.

The only things that benefit from a small amount of UV light are corals that live near the surface. Corals produce a natural sunscreen that protects them from UV light. The UV light can enhance their colour a bit but doesn't do a lot for fish.
__________________
Colin_T is offline   Reply With Quote
Old 11-28-2022, 08:38 AM   #3
Aquarium Advice FINatic
 
Super_Blueberry's Avatar
 
Join Date: Jan 2012
Location: Esko, MN
Posts: 654
Quote:
Originally Posted by Colin_T View Post
Black lights generally produce ultraviolet A (UV A) or ultraviolet B (UV B) wavelengths of light. These should not be used on aquariums or around people because they can cause skin cancer and cataracts.

Fish from rainforest or blackwater habitats are not normally exposed to UV A or B in the wild and should not be exposed to excessive UV light in the aquarium.

Albino fishes should not be exposed to UV light.

The only things that benefit from a small amount of UV light are corals that live near the surface. Corals produce a natural sunscreen that protects them from UV light. The UV light can enhance their colour a bit but doesn't do a lot for fish.
Iíve seen people say that, but Iíve also seen articles like this:
ďExposure to UVA from black lights is well below the recognised safe limits and is not hazardous to people using them, working in their vicinity or who have them in their home. Exposure from black lights would be much lower than your exposure to UVA outdoors.Ē
I understand that they fall within the UV-A range, but I find it hard to believe that they would be commercially available to consumers as common party lights if they were a health hazard. Iím not talking tanning booths levels hereÖ
__________________
Super_Blueberry is offline   Reply With Quote
Old 11-28-2022, 11:10 AM   #4
Aquarium Advice FINatic
 
Join Date: Oct 2022
Location: Perth in Western Australia
Posts: 846
Quote:
Originally Posted by Super_Blueberry View Post
I understand that they fall within the UV-A range, but I find it hard to believe that they would be commercially available to consumers as common party lights if they were a health hazard. Iím not talking tanning booths levels hereÖ
A lot of things sold in shops aren't safe but people are exposed to them daily. Nitrites and Nitrates are carcinogenic if ingested but are often found in tap water.

A herbicide called Glyphosate (Roundup, Weed Killer, etc) is extremely dangerous but can be bought from any supermarket, hardware store or garden centre, by children. This stuff is used all over parks, gardens, footpaths and people's yards but it is a serious safety hazard, and it does cause cancer.

Exhaust fumes from fossil fuel powered vehicles are toxic but billions of vehicles spew the stuff out every day and most people don't give it a second thought.

People still smoke even though it has been known to cause lung cancer for nearly 100 years. Alcohol is the same, causes all sorts of cancers as well as damages families and wastes heaps of police resources.

Half the chemicals in fish medications cause cancer but people still add them to their aquarium.

Vermiculite is used in horticulture to grow seedlings but it is often found in association with asbestos.

White asbestos has been found in talcum powder and the companies that make the stuff have known about it for over 50 years.
__________________
Colin_T is offline   Reply With Quote
Old 11-28-2022, 11:56 AM   #5
Aquarium Advice Addict
Community Moderator
 
Aiken Drum's Avatar
 
Join Date: Apr 2019
Location: Derbyshire, UK
Posts: 4,629
Quote:
Originally Posted by Colin_T View Post
White asbestos has been found in talcum powder and the companies that make the stuff have known about it for over 50 years.
Do they still mine asbestos near you in Perth? Certainly is still mined in some parts of the world. Even supposedly civilised parts.

If you look hard enough in many building components you will find asbestos as its still commonly used in many poorer countries and components and parts commonly find their way into the supply chain of countries where its banned and a contractor is trying to cut a corner.

Asbestos is still found in many cheaper break pads even though its illegal and you will get a good dose if you stand for any period at a busy street corner where there is a lot of braking.
__________________
Aiken Drum is offline   Reply With Quote
Old 11-28-2022, 12:53 PM   #6
Aquarium Advice FINatic
 
Join Date: Oct 2022
Location: Perth in Western Australia
Posts: 846
Quote:
Originally Posted by Aiken Drum View Post
Do they still mine asbestos near you in Perth? Certainly is still mined in some parts of the world. Even supposedly civilised parts.
No, they stopped mining asbestos here in the mid to late 1980s. The town where most of it came from was called Wittenoom and they deleted that from maps about 15 years ago. There were a few old timers who lived there and the government wanted them out but they wouldn't leave. I'm not sure what happened to them but my guess is the government dragged them out and left all their belonging behind.

All roads leading to Wittenoom have been blocked and or ripped up, and signs erected around the outskirts warning of asbestos contamination and you aren't allowed in there. From the pictures I have seen it's a nice area but it's a death sentence for anything living there. Same as Chernobyl, lots of plants but very little else, including fish in the waterways.
__________________
Colin_T is offline   Reply With Quote
Old 11-28-2022, 03:25 PM   #7
Aquarium Advice FINatic
 
Super_Blueberry's Avatar
 
Join Date: Jan 2012
Location: Esko, MN
Posts: 654
Too much of anything can be a bad thing. Using something in a way that it’s not intended can be a bad thing. None of your arguments actually answer my question.

You put a little glute in your tank and it helps your plants. You have your fish swim in pure Metracide, they’re going to have a bad time. Same with prime… you put a capful in, you’re good. You put a gallon in, not so good.

Yes, high doses of UVA/B is bad, but that’s not what I’m planning on using. I guess I’m looking for someone who has used blacklights themselves, or information on cases of them being used in an aquarium, and none of this anecdotal hearsay.
__________________
Super_Blueberry is offline   Reply With Quote
Old 11-28-2022, 10:59 PM   #8
Aquarium Advice FINatic
 
Join Date: Oct 2022
Location: Perth in Western Australia
Posts: 846
If UV lights were meant to be used on aquariums, you would be able to buy them from pet shops. I have never seen UV light globes sold at pet shops during the last 50 years.

I have seen UV sterilisers sold at pet shops and these have a plastic case around the UV light to stop the UV light affecting things around it.

The closest you get to UV light globes for aquariums is actinic light, which is not UV light but close to it, and it makes things glow/ luminesce. Actinic lights have been available in pet shops for over 40 years.

I spent quite a few years working in the pet industry and never had any customers use black lights on their tanks. You can try it and record the results. It would make an interesting experiment. Have 2 tanks set up the same. Have one with the black light and the other without. Monitor and record things with video, pictures and writing down results, over a period of at least a couple of years, and see if there's a difference. It might be worth using them but I doubt it.
__________________
Colin_T is offline   Reply With Quote
Old 11-29-2022, 08:38 AM   #9
Aquarium Advice FINatic
 
Jacky12's Avatar


 
Join Date: Sep 2021
Location: USA
Posts: 572
My secondhand axotle tank came with a black light in the hood as the GFP axies carry the Green Fluorescent Protein. I chose an open egg crate cover to maintain lower temperatures, but I never heard anything about harm to the axies from black lights.
__________________
Jacky12 is offline   Reply With Quote
Reply

Tags
black, light

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
pros and cons of canister and HOB filters? son2fu Freshwater & Brackish - General Discussion 14 11-15-2006 09:06 PM
closed loop vs sump - pros and cons guitarded Saltwater Reef Aquaria 2 12-27-2004 04:30 AM
pros and cons of tank divider mikemou Freshwater & Brackish - General Discussion 6 05-18-2004 04:18 PM
Species Tanks: Pros and Cons? MikeWinLDS Freshwater & Brackish - General Discussion 5 05-07-2004 03:18 AM
Pros and cons? Salt4Us Saltwater Reef Aquaria 2 07-01-2003 12:13 PM







» Photo Contest Winners







All times are GMT -4. The time now is 06:19 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.