Is this a cactus? If so, what type?
I've always wanted a cactus, so I got this. The only thing is that I'm not sure what type of (if it actually is a) cactus it is. Does anyone know?
As for care, I'm keeping it on my windowsill to give it plenty of sunlight. The person I got it from said to water it once every other week, and that the soil it is in is fine. Is that right? Or should I be changing the soil? My final question is, should I be feeding it? Or would changing the soil (if I should) count as feeding it?
Like I said, I've always wanted one. I just don't know a lot about them.
Here is a link that might be useful: