New Cactus but they look sick

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cristina Temuco, Chile(Zone 9b) Jan 23, 2016

Hi all

I received these cactus as a gift but I am sure, with my limited knowledge of cactus, that they seem sick.
Can someone confirm my suspicions?
Also what species are they please.
Thanks
Cristina

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mcvansoest Mesa, AZ(Zone 9b) Jan 24, 2016

Hi Cristina,

I am not sure they are sick, sometimes with age the stems of cacti can get discolored and dead looking and things are just OK. However, having said that, it could also indicate some kind of affliction. One thing to check is the soil: is it fast draining and does it stay moist long - if it is not and does stay moist long time to change so to something that is fast draining and dries out quickly. Another thing to check is if the brown/grey spots are solid or soft and squishy. If the former, things are probably fine, if the later - the cacti are rotting and you'd be cutting and re-rooting a bunch of stems.

Now as to the IDs: some kind of rat tail cactus for the first one, Echinopsis oxygona or some hybrid there-of for the second one, and Opuntia microdasys for the last one.

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DaisyPlantLady Reno, NV(Zone 6b) Jan 24, 2016

Yes, I was thinking some kind of rat tail cactus but not sure what kind goes straight up like that.

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