Euphorbia cactus turning yellow on top

Trouble shoot problems you are having with your cactus.
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Xbandaid
Posts: 5
Joined: Sat Jul 29, 2017 12:07 pm

Euphorbia cactus turning yellow on top

Post by Xbandaid »

Hi all!

I got a 2 meter tall Euphorbia cactus for my birthday last year, and it was nice a dark green. However, in the last half year, it's been slowly turning more and more yellow, starting from the top but now slowly traveling down the cactus. My apartment is not very sunny, but I don't know if that is the reason, or does it have something to do with the watering/hard water? I have now gone to watering it about once a month.

What can I do to save it?

Thanks so much!
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