Cacti ID (3) - Two Rebutia and an Echinopsis?

[vanessau]

Hi! I'm freshly new here on cacti guide, but my passion for cacti and succulents come from afar - I have a >30 years old echinocactus and I'm so proud of it!

Anyway, I'm here to ask a bit of help identifying these three plants of mine, bought few years ago and still unknown.

Unfortunately, for two of them I don't have a picture with flowers, so we'll need to wait few weeks (?) for that. Plus one of them it's not in its best shape and I still need to figure out why... (that's one of the main reason I'm looking for their "real" name )

First one: my guess is that this is a Rebutia, what kind of Rebutia is still a mistery. It makes nice small orange flowers.

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Second one: probably is from the same family of the previous one, with longer, soft spines like ears and creamy white flowers. I has strange yellow and orange stains lately... maybe due to the huge amount of flowers is making?

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Third one: an Echinopsis maybe? First this plant hasn't grown a lot since I took it - more than 2 years ago now - and I still doubt about its health. It blooms in big, pink flowers coming from the base.

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I want to thank anyone who will take a bit of time to lift the mistery around those three!
I‘ll try to add flowers' pictures later as soon as they'll bloom!

[phil_SK]

I think you have Rebutia fabrisii, Aylostera albiflora and another rebutia.

[Download]

Ignoring the species name for a second, to put it bluntly, your cactus soil is crap and will very easily kill your plants. You need to do some basic research into cactus potting mixes.

[vanessau]

I think you have Rebutia fabrisii, Aylostera albiflora and another rebutia.

Thank you!

Ignoring the species name for a second, to put it bluntly, your cactus soil is crap and will very easily kill your plants. You need to do some basic research into cactus potting mixes.

Maybe it's the reason 1) not growing 2) having orange-ish marks - first one - and completely dry(dead?) part - second one?
Unfortunately, it has never happened till now...

[ohugal]

In the cultivation category there is a lot of information to be found on substrates. It might be helpful to take a look there. Depending on your climate and growing conditions you can choose something to your liking. For cacti I use 20% organic matter at the most and usually opt for completely mineral substrate, e.g. 4 parts quartz sand/grit + 4 parts bims/zeolite/lava (I use Lechuza Pon) + 2 parts flugsand. It’s an ongoing experiment.

[mikethecactusguy]

A bit more diplomacy should have been afforded you in a previous answer. It appears your soil is too organic. Buy some better cactus soil. No Miracle Grow brand mix. Just a basic cactus mix. The plants look to be getting burnt by the mineral content of the soil. They obviously are trying to flourish since they are flowering. Good luck..
Mike M