Just wanted to come back on here and say thank you to all the members who have given me advise. I guess I've had my 4 seedling catt for about a month, and they look exactly the same as when I got them. They are in new pots, and I guess I didn't kill them (yet).
When I bought them on the clearance rack I had no idea how to care for them. All I know I've learned mainly from this site. They don't look any better than when I got them, but they don't look any worse.
How fast do they die or show that they are damaged after repotting them?
Show us pictures so we can observe its progress. Cattleya seedlings are usually sold a year and a half to two years old....there is a possibility that it will bloom in a couple of years.
Being a month in your care and it didn't shrivel and die means it is getting accustomed to your environment and you are giving it the right culture.
I have around the same number of rescued seedling catts. Most came with dried useless roots. Really, just keep them in a fast draining medium, and water every week, more in summer. I have inch long roots on most, longer on others. Healthy white with a green tip. It took about a year. Err on the side of too little water. Treat like a cactus.
I bought a catt seedling months ago from Lowe's. It had root rot and is growing very slowly. It has lots of new roots now and a sheath or something is finally opening but its been very very slow going. It was in a pot with a moss sphag mix and that wasnt working so I started growing it bare root and watering it with my vanda daily and that is when it finally started putting out a lot of new roots. I recently put it in semi-hydro so we will see how it goes but yeah it took a long time to see any change.
Sorry, don't know how to post pictures. I'm just kinda thrilled they are still alive. When I transplanted I found little in way of roots. I had to work on the transplanting a second time because I hadn't done a good job and they moved around in their pots with the slightest movement.