Need help ID 2 orchids from Hawaii

[lisa1996]

I bought these 2 orchid two years ago in Hawaii. I don't know what kind they are. Also I need some growing tips. Neither look very healthy and aren't growing at all very well. They haven't died in the 2 years that I've had them, but they aren't doing well. I am really appreciate any and all help. Thanks!

[WhiteRabbit]

They appear to be oncidium alliance - beyond that I couldn't say - possibly Miltonia by looks of the psuedo-bulbs, but I'm definitely not positive.
The pleated foliage is caused by underwatering. That could be caused by actual underwatering or rotted roots. If you haven't repotted that's always a good place to start and you can have a look at the roots.
Media used should drain well. Small grade fir bark or coconut husk for example. Or a ready made orchid mix 'small' or 'fine' grade.
In general, Oncidium alliance should be watered before drying out, but not soggy. Bamboo skewers in pots are excellent for monitoring moisture. Also, most do well with moderate light - a west or east facing window if indoors.

I'm sure others will have other advice/information for you. Good luck

[Judi]

Welcome to OB! I agree with WhiteRabbit, the plants look like they are in the oncidium alliance. I would also wonder if your humidity isn't too low. I couldn't help but notice what seems to be moss on the pot. Are you growing in moss or bark medium? Have you repotted recently? Sphag decomposes faster than bark medium. Checking the roots is always a good idea, and maybe you should consider repotting in a bark medium for oncidiums. Just don't forgt to soak the bark, overnight soaking is a good idea. I also like to use K-L-N, a rooting stimulant. I have had very good luck with it. Good luck with your plants!

[King_of_orchid_growing:)]

Difficult to nail down what they are exactly with photos of the plants themselves.

Photos of the plants added with the pics of the flowers makes identifying plants a lot easier.

But I agree, it's definitely in the Onc Alliance and the one on the right (the second photo) does appear to be Miltonias (the actual Miltonia vs. Miltoniopsis).

The first appears to be a Miltoniopsis.

But I'm not 100% certain.