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How much light

1201 Views 4 Replies 3 Participants Last post by  chicken
I have a 29gal. tank. I switched from the led light that came with the tank to an Aquaticlife floresent light. Wow, what a difference. In just 3 weeks the plants look great. I leave the lights on for about 13 hours aday. I'm starting to get some algea on the tank glass. I'm I leaving the lights on too long? Thanks:icon_conf
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13 hours is a bit long. Are you injecting CO2? Dosing Ferts? How many bulbs?
I'm not injecting co2 or anythin else. Just use plant food.
I'm not injecting co2 or anythin else. Just use plant food.
2 bulbs
Is this a T5HO fixture? If so, I suspect that is way too much light for a tank without co2. And 13 hours of light is too much. The plant aren't using it for that full duration, but the algae is.
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