Is this pot too tall

[Blue Trilobyte]

Hey everyone. I have a large barrel cactus (species unknown) that's needed repotting for a while now. After going through all the pots I had handy (I always save pots from garden and landscaping purchases) this was the smallest one I could find that was bigger than the previous pot.

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The previous pot was about 2/3 the height and the same diameter. I filled about one inch of the bottom of the new pot with marble chips to offset the height. I still feel its way too big though. If anything I could put it back in its old pot; one way or another the cactus really needed new soil. I'd appreciate any advice, this is easily the biggest cactus in my collection and I want it to be nice and healthy.

[CrazyPlantLady]

I'm still a rookie when it comes to cactus care, but I think that pot might be too tall for that cactus. To me, that species looks similar to one my mother has, Pilosocerus azureus. She's had hers for over 25 years and it's about 3' tall. If this species grows like the Pilosocerus azureus, you're going to need a much shorter pot with a wider base to give it support.

[greenknight]

It's fine. Ferocactus plants have a tap root, so deep pots are best.

[iann]

You should know the answer to the question, since you just repotted it. Did the roots fill the pot, or at least come close? If so, no problem. If not, problem

About what it is, I don't think Ferocactus. Is it an Echinocactus? Or a columnar as CPL suggests?

[CactusFanDan]

Looks like Ferocactus glaucescens to me. I'd say that pot is too tall and the bottom two inches might never be utilised in that plant's lifetime.