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Discussion Starter · #1 ·
have a few plants in a tank i setup quite recently. A few days ago I increased the lighting from one 40W fluorescent tube to two, as well as starting up the Co2 injection. Tonight i noticed that my dwarf Hygrophila, as well as what i THINK may be ludwigia and another bushy stemmy plant, all have closed up after i turned off the lights (the lights in the room were on for a little while now and again)

Im just wondering if anybody knows why this is? i dont think i have seen it before, its almost the same as how a flower closes up at night, the leaves kinda close together at the top of the plants.
 

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They're simply done photosynthesizing for the day. It's quite normal and fascinating to watch. :)
 

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Discussion Starter · #3 ·
Thanks, i didnt think id ever seen any of my plants doing it before, maybe i just didnt pay enough attention.
 
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