fluorescent bulb getting dim?! - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 5 Old 04-30-2011, 10:16 AM Thread Starter
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fluorescent bulb getting dim?!

My fluorescent bulb (Coral life T8 17w) seems to be getting dimmer ..... most recently noticed this the past week when i saw a huge change. Normally I would not care but its a plant bulb and I am worried my plants will suffer. I hate to buy a new bulb cause it was like 25 bucks and its only 2 months old! I was wondering if anyone else has had a similar problem or possible solutions?

15 years of fishing/ fish tank experience that sometimes I learned the hard way....... but I'm always still learning.

29 Gal Tall - Amazonian (Driftwood & Live Plants)

3 - Peppered Corys

10- Neon Tetras

3 - Asellus Puffers

2 - Otto Cats



75 Gal - underway!
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post #2 of 5 Old 04-30-2011, 10:22 AM
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A T8 tube should be sufficient for a year, some say 2-3 years; I just replacee my T8's after about 21 months and noticed quite a difference.

I have never seen a difference without replacing the tube, it is usually gradual over time. Tubes loose a lot of intensity during the first few months, though I have never been able to notice this unless I replace the tube.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #3 of 5 Old 04-30-2011, 11:19 AM Thread Starter
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Quote:
Originally Posted by Byron View Post
A T8 tube should be sufficient for a year, some say 2-3 years; I just replacee my T8's after about 21 months and noticed quite a difference.

I have never seen a difference without replacing the tube, it is usually gradual over time. Tubes loose a lot of intensity during the first few months, though I have never been able to notice this unless I replace the tube.

Byron.
Thanks. I just came back from vacation so thats how i noticed it was dimmer....today is the first chance I had to actually work on it but no luck.....I'll let it be until I see any signs from my plants that they aren't getting sufficient lighting.

15 years of fishing/ fish tank experience that sometimes I learned the hard way....... but I'm always still learning.

29 Gal Tall - Amazonian (Driftwood & Live Plants)

3 - Peppered Corys

10- Neon Tetras

3 - Asellus Puffers

2 - Otto Cats



75 Gal - underway!
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post #4 of 5 Old 05-02-2011, 09:28 PM Thread Starter
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Well the bulb has gotten even dimmer since my last post....no idea whats wrong but I put in an extra lamp I had and that one works fine....so at least its not an electrical problem with my hood. I have the receipt so it looks like I'll be trying to contact the company that made it to get a replacement or my money back.

15 years of fishing/ fish tank experience that sometimes I learned the hard way....... but I'm always still learning.

29 Gal Tall - Amazonian (Driftwood & Live Plants)

3 - Peppered Corys

10- Neon Tetras

3 - Asellus Puffers

2 - Otto Cats



75 Gal - underway!
rnsheehan21 is offline  
post #5 of 5 Old 05-03-2011, 10:14 AM
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Quote:
Originally Posted by rnsheehan21 View Post
Well the bulb has gotten even dimmer since my last post....no idea whats wrong but I put in an extra lamp I had and that one works fine....so at least its not an electrical problem with my hood. I have the receipt so it looks like I'll be trying to contact the company that made it to get a replacement or my money back.
That is interesting. If it is that noticeable, I would also expect a malfunction of the tube. I guess these things happen.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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