what is wrong with my dendrobium and how to save it?

[lisaqiu]

Hello everyone, I’m new here and also new for Orchids.
I’ve got a Dendrobium Orchid 3 weeks ago. Not sure what exact type is this Dendrobium.
It got 3 flower spikes and all are well blooming.
But the bodys of the Dendrobium is shrinking and its loosing its leaves. The leaves turns yellow from the tip to the bottom. I am afraid I got the Dendrobium overwatered, the roots seems all got rotten, they were brown and full of water. I trimme them off (hopefully). And I have stopped watering for 1 week, but the roots are not getting better, and the leaves are one by one turning yellow.

Could you give me some advices about what I have done wrong with it, and what can I do to save this orchid.

Thanks a lot.

[WhiteRabbit]

The plant is declining because it is, and has been, without healthy roots, and has been unable to take up any water.

New roots only come from new growth. The plant can live for a while without roots, living off water and food stored in the canes, which is why the canes shrivel.

Pot it in the smallest pot possible, water when the potting mix (orchid bark mix) has just become dry.

It may, or may not survive. If not, don't be hard on yourself - most of us have killed our share of orchids.