I'll try to help you but you need to furnish a lot more info. And a picture is really worth more than a thousand words. Please re-read your comment. It is not possible for anyone to know what you are writing about. Try again.

I'm so sorry I'm having problems with my phone I've taken pictures and have tried to post them but my phone is not letting me I have done it before with my adenium and with my epidendrums which you were the one that identified and you identified my dendrobiums but now I'll be happy if I can even ask a question the leaves on my dendrobiums are just turning completely yellow the roots are good I have them in lava rock and it has a new growth coming out really nice but the three suda bulbs I know it is misspelled but you do know what I mean that it originally came with the leaves are all yellow and the other one is doing the same thing I bought them both together for a dollar each and I've been trying to save them they both have really good routes and they both have a new growth I promise to post a picture as soon as my grandson comes to tend to my phone thank you