Lighting needed for Hemianthus Calli. - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 07-23-2011, 11:58 PM Thread Starter
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Lighting needed for Hemianthus Calli.

This coming month I'm planning on upgrading my lighting from a 18" T8 to a twin T5NO 24" long 14 watts each, with a glass hood.

Will Hemianthus Calli. grow ok with the light I want to use? My substrate is Eco-complete w/o a Co2 system.

I'm leery of using Co2 as I have breeding shrimp.

If anyone has used this plant in a low-tech tank with good to excellent results I would like to hear about it.


Thanks,

Martin
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post #2 of 6 (permalink) Old 07-24-2011, 12:01 AM
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Consensus is that HC needs CO2 to grow. Of those that say they did it without CO2, they all used Excel. You've got shrimp. Sounds like you might want to try a different mat.
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post #3 of 6 (permalink) Old 07-24-2011, 12:35 AM Thread Starter
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Any suggestions?
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post #4 of 6 (permalink) Old 07-24-2011, 12:55 AM
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Ive grown Hc in my shrimp tank with no co2 or excel. Took forever to grow though. I used two t5no in my 17g but i also reduced the lights strength by taping white paper over the acrylic splash guard the light had.



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post #5 of 6 (permalink) Old 07-24-2011, 01:01 AM
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HC doesn't need high light. Your 28W fixture might suffice depending on the tank size.

However, if you're trying to grow a carpet without CO2, this will take a looooooooong time.


Tony

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post #6 of 6 (permalink) Old 07-24-2011, 01:44 AM Thread Starter
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I'm using a 15 gallon standard, 24" L x 12" H x 12" W .

If the light that I want to use is too high, can the light "intake" be adjusted by how many hours its on?
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