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Discussion Starter · #1 ·
Even though I own a good selection of plants, Im still learning day by day why plants turn red in high light.

Heres an example:

Purchased this red nesae. had it in tank for 2-3 days and now the new leaves are turning green.

Could you guys help explain, in an easy way, without making me have a brain-fart with big words, how to keep plants red?

I've struggled understanding and would appreciate your responses very much!

New leaves



original leaves on bottom .
 

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Carpe Diem
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Light and then some more light.

via Droid DNA Tapatalk 2
 

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Well hello there sir and speak of the devil! lol
 

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Same thing happened to my Rotala Colorata. First few days, it was growing great. Red leaves and everything. Then my tank had a bit of green water attack it. That along with some surface film, the light was just being reduced way too much, and the leaves went back to a green color and looked a bit stunted.

I've found that high light + the right amount of co2 really helps.
 

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plants that are naturally red, will stay red under decent lighting
plants that can turn red will do so when stressed by too much light.

either way, most plants that can turn red, or be red. require good co2 levels to do so ALONG WITH PROPER LIGHTING
rotala colorata is a light responder, and generally does turn red when floating close to the surface
the most you can generally hope for for this plant, is a pinkish underside, and a tanner looking top leaf. with a red stem
 

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Carpe Diem
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Nesea is a plant I just cannot seem to keep. Im in love with nesea golden but it just melts for me. :icon_redf
Make sure you get it grown immersed and plant the top 4" or so. Letting it float for a week will help also. Decent light is a must.

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Make sure you get it grown immersed and plant the top 4" or so. Letting it float for a week will help also. Decent light is a must.

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Thanks for the tips, I think I'll try another time if I can find it from a different seller. Tough to find! I was not really satisfied with the condition I received them in which probably didn't help!
 

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Discussion Starter · #13 ·
3

thanks everyone for the tips!!

I just got a 3rd Finnex LED fixture..

I have this plant in a 40B..

Lighting is:
2 x 36" FinnexRay2
1 x 36" Finnex FugeRay

Blasting the crap out of my co2. Have it hooked to a Ista Reactor.

Lets see if this helps!

(overkill? :p i'll text PAR when my meter arrives on Monday)
 

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Carpe Diem
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PAR reading

I just measured PAR in that tank
with 3 (1 month) new bulbs and 3 (30 months) old ones
at rear back wall
no other ambient light
using Hoppy's DIY PAR meter:

@surface: 185
@substrate: 135

3-sample average
 

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Discussion Starter · #15 ·
I just measured PAR in that tank
with 3 (1 month) new bulbs and 3 (30 months) old ones
at rear back wall
no other ambient light
using Hoppy's DIY PAR meter:

@surface: 185
@substrate: 135

3-sample average
'That' tank as in which tank? Yours or mines?

My PAR meter from Hoppy should be coming in too.

How you liking it so far?
 

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Carpe Diem
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The tank in which I grew Nesaea Red.

I got the PAR meter on loan from a friend today. I have nothing to calibrate it against and have to assume that it is accurate enough. Otherwise, no issues.

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