T5 Too Much Light?

Bazzar1986

New Member
Sep 17, 2018
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35
NC
I'm setting up a 36 x 12 x 16 tall and have a 1 or 2 x 39w t5 retrofit from one of my old reef tanks. The plan is to set up a lower tech tank to start. The light would be about 4" above the water in a canopy. Do you think 1 39w t5 would be too much light? Rotala Butterfly calculator says 28 par with no reflector which if its correct should be about right. My other option would be a Fluval 3.0 but it seems quite a few tanks I see are T5 lit. Anyways thanks for your time.
 
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Tim Harrison

Lifetime Member
Lifetime Member
Jul 7, 2017
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It should be okay. I recommend that you plant heavily from the outset either way; it infers greater biological stability. Floating plants are always a good option in a low energy anyway, but they're a good way to reduce light intensity hitting the immersed plants.
 

Bazzar1986

New Member
Sep 17, 2018
2
3
3
35
NC
Thanks Tim, Iv'e go a few Truelumen Floras on the way which are not highest par bulbs out there but should hopefully put me in the right range with some good color. As far as planting, I'm planning to plant as heavily as I can from the get go. Just have to find the right person to buy from that has a good selection of low tech plants and enough quantity to fill it up.