ok so about a month ago i got a leather tree coral and when i got it from the LFS it was pink but turned purple and light blue it seems to be growing good and has all its polyps extended i got another one today and it turned the same color as the old one after being in my tank for a few hours, my question is is it stressed now or was it stressed before? or is it not getting enough nutrients? i does with kent marine part 1 and 2 everyday and does with phytoplex about every 3-4 days i do weekly water changes (about 20gal) my ph is 8.2
nitrites and nitrates are 0. any info would be helpful
~Brandon
Here is a pic of the older one

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Is it Stressed?
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