T5 Bulbs

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MikeyAl

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Hi all- I have T5 Quad HO. Had for about 6 months. Recently i have been getting a lot of algae growth. My water parameters are:
Nitrate - <1
Nitrite - 0
Phosphates - 0
Ammonia - 0
SG - 1.025
Temp - 78
Calcium - 420
Alkalinity - 11

My LFS owner told me if my T5 bulbs are old, they may be causing the algae growth. Not sure if this makes sense.
Anybody know if this is accurate?
 
Do you have the "stock" bulbs in this fixture? If so, you may want to consider replacing them with ATI or another high-quality brand of bulb. Most likely scenario is that you're feeding too much and the algae is consuming your N and P.
 
They are stock - i ordered some Coralife bulbs to replace.
My Nitrates and Phosphates are at zero.
I also use an Ecoxotic Panorama LED. My light settings

-LED (blue moon)on at 8:00 a.m. off at 10 p.m
-Blue Actinic on at 9:30 a.m - off at 7:30pm
-Ecoxotic LEDs on at noon - off at 7:30 pm
-White T5s on at noon - off at 6:00 pm.
 
T5 bulbs get old and need changing evey 6-9 months, so you may be wanting to replace em if you are running into issues already.
 
Just ordered me some Geisman bulbs myself.
 
quality t5 bulbs are so worth it! I usually wait about 7 months and then replace - older bulbs can definitely cause increased algae growth because the spectrum shifts and that may happen sooner in lower quality bulbs
 

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