Are these orchids having any problem that needs to be treated??

[tgkhang]

I just bought 2 Oncidiums (one is The Sweet Sugar Dancing Lady, the other one is the Taige Tail Dancing Lady) for my collection yesterday and I notice some stuffs that are quite concerning.

The first orchid has a weird looking pseudo bulb, not sure if it's dead or not, but it's definitely not good. There are some black spots on the leaves that I'm still trying to find out exactly what it is (looks a bit like black rot...can I just spray hydrogen peroxide on the black spots?? Or should wait for a little bit more to see if it should be cut or not?). The plant itself is a bit wobbly so I don't know if it's a planting problem or a root problem, the plant is blooming at the moment so I'm a bit hesitant to repot the plant. Though I did spot a bug in the pot, couldn't recognize what it was, and I don't know if there are more of those in it, I couldn't catch the thing because it ran back into the pot before I could touch it. Maybe I should try to repot to see if there's anything wrong with the roots because again, the plant is pretty wobbly. The pot has drainage holes, which is a good thing, but the bottom is completely flat, so there were 1 or 2 roots got squished under there, it might have affected the rest of that root inside the pot as well. Other than that, the blooms are looking fine, there's nothing wrong with the spike, the soil looks pretty airy.

The second one is older and it has really great leaves and pseudo bulbs, except these 2. One of them I think got biten in the centre, and I don't know if I should do something about it or just leave it as it is. If it was biten by a bug and the pot is the original one it was grown in, then I should probably try to repot this one as well, although it too is blooming beautifully at the moment. Both the bulbs has very bright green color, along with some water spots and lots of tiny tiny little brown spots on both their leaves and bulbs. This plant is not wobbly at all, and given that it has quite alot of bulbs, I can safely assume that the root system is probably quite healthy, though the only way to find out is to actually repot the plant. Same as the other one, the flowers are fine, the blooms are fine, and the spikes are fine.

So let me know what you guys think. Are those symptoms need to be treated or are they just minor symptoms that I don't need to worry about?

Thanks in advance.